Question: Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?
 A. The higher species diversity in the tropics tends to increase plant growth.
 B. There are lower metabolic costs to plant growth in the tropics.
 C. The availability of water and warm temperatures in the tropics fosters photosynthesis.
 D. The tropics have more predators that minimize herbivory.
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?
 A. The higher species diversity in the tropics tends to increase plant growth.
 B. There are lower metabolic costs to plant growth in the tropics.
 C. The availability of water and warm temperatures in the tropics fosters photosynthesis.
 D. The tropics have more predators that minimize herbivory.
Answer:


Question: Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?
 A. The higher species diversity in the tropics tends to increase plant growth.
 B. There are lower metabolic costs to plant growth in the tropics.
 C. The availability of water and warm temperatures in the tropics fosters photosynthesis.
 D. The tropics have more predators that minimize herbivory.
Answer:


Question: Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?
 A. The higher species diversity in the tropics tends to increase plant growth.
 B. There are lower metabolic costs to plant growth in the tropics.
 C. The availability of water and warm temperatures in the tropics fosters photosynthesis.
 D. The tropics have more predators that minimize herbivory.
Answer:


Question: Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?
 A. The higher species diversity in the tropics tends to increase plant growth.
 B. There are lower metabolic costs to plant growth in the tropics.
 C. The availability of water and warm temperatures in the tropics fosters photosynthesis.
 D. The tropics have more predators that minimize herbivory.
Answer:


Question: Proteins were shown to move about in a plane of the plasma membrane when mouse cellsurface proteins and human cell-surface proteins were observed to integrate along a fused mouse-human cell plasma membrane. Which of the following cell culture techniques was most likely employed in order to yield these results?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Proteins were shown to move about in a plane of the plasma membrane when mouse cellsurface proteins and human cell-surface proteins were observed to integrate along a fused mouse-human cell plasma membrane. Which of the following cell culture techniques was most likely employed in order to yield these results?
 A. Producing a heterokaryon
 B. Producing a hybrid cell
 C. Isolating an immortal variant cell from culture and using it to create a cell line
 D. Inserting a tumor-inducing virus into a normal cell to initiate transformation
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Proteins were shown to move about in a plane of the plasma membrane when mouse cellsurface proteins and human cell-surface proteins were observed to integrate along a fused mouse-human cell plasma membrane. Which of the following cell culture techniques was most likely employed in order to yield these results?
 A. Producing a heterokaryon
 B. Producing a hybrid cell
 C. Isolating an immortal variant cell from culture and using it to create a cell line
 D. Inserting a tumor-inducing virus into a normal cell to initiate transformation
Answer:


Question: Proteins were shown to move about in a plane of the plasma membrane when mouse cellsurface proteins and human cell-surface proteins were observed to integrate along a fused mouse-human cell plasma membrane. Which of the following cell culture techniques was most likely employed in order to yield these results?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Proteins were shown to move about in a plane of the plasma membrane when mouse cellsurface proteins and human cell-surface proteins were observed to integrate along a fused mouse-human cell plasma membrane. Which of the following cell culture techniques was most likely employed in order to yield these results?
 A. Producing a heterokaryon
 B. Producing a hybrid cell
 C. Isolating an immortal variant cell from culture and using it to create a cell line
 D. Inserting a tumor-inducing virus into a normal cell to initiate transformation
Answer:


Question: Proteins were shown to move about in a plane of the plasma membrane when mouse cellsurface proteins and human cell-surface proteins were observed to integrate along a fused mouse-human cell plasma membrane. Which of the following cell culture techniques was most likely employed in order to yield these results?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Proteins were shown to move about in a plane of the plasma membrane when mouse cellsurface proteins and human cell-surface proteins were observed to integrate along a fused mouse-human cell plasma membrane. Which of the following cell culture techniques was most likely employed in order to yield these results?
 A. Producing a heterokaryon
 B. Producing a hybrid cell
 C. Isolating an immortal variant cell from culture and using it to create a cell line
 D. Inserting a tumor-inducing virus into a normal cell to initiate transformation
Answer:


Question: Proteins were shown to move about in a plane of the plasma membrane when mouse cellsurface proteins and human cell-surface proteins were observed to integrate along a fused mouse-human cell plasma membrane. Which of the following cell culture techniques was most likely employed in order to yield these results?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Proteins were shown to move about in a plane of the plasma membrane when mouse cellsurface proteins and human cell-surface proteins were observed to integrate along a fused mouse-human cell plasma membrane. Which of the following cell culture techniques was most likely employed in order to yield these results?
 A. Producing a heterokaryon
 B. Producing a hybrid cell
 C. Isolating an immortal variant cell from culture and using it to create a cell line
 D. Inserting a tumor-inducing virus into a normal cell to initiate transformation
Answer:


Question: Gene flow between populations results in

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Gene flow between populations results in
 A. an increase in genetic homogeneity in the metapopulation
 B. an increase in the rate of deleterious mutations in the metapopulation
 C. an increased likelihood of speciation
 D. disruption of Hardy-Weinberg equilibrium in the metapopulation
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Gene flow between populations results in
 A. an increase in genetic homogeneity in the metapopulation
 B. an increase in the rate of deleterious mutations in the metapopulation
 C. an increased likelihood of speciation
 D. disruption of Hardy-Weinberg equilibrium in the metapopulation
Answer:


Question: Gene flow between populations results in

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Gene flow between populations results in
 A. an increase in genetic homogeneity in the metapopulation
 B. an increase in the rate of deleterious mutations in the metapopulation
 C. an increased likelihood of speciation
 D. disruption of Hardy-Weinberg equilibrium in the metapopulation
Answer:


Question: Gene flow between populations results in

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Gene flow between populations results in
 A. an increase in genetic homogeneity in the metapopulation
 B. an increase in the rate of deleterious mutations in the metapopulation
 C. an increased likelihood of speciation
 D. disruption of Hardy-Weinberg equilibrium in the metapopulation
Answer:


Question: Gene flow between populations results in

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Gene flow between populations results in
 A. an increase in genetic homogeneity in the metapopulation
 B. an increase in the rate of deleterious mutations in the metapopulation
 C. an increased likelihood of speciation
 D. disruption of Hardy-Weinberg equilibrium in the metapopulation
Answer:


Question: A subunit of DNA and protein consisting of 134-base-pair long stretches of DNA surrounding a protein octomer is called (a)

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A subunit of DNA and protein consisting of 134-base-pair long stretches of DNA surrounding a protein octomer is called (a)
 A. histone
 B. chromatin
 C. nucleosome
 D. solenoid
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: A subunit of DNA and protein consisting of 134-base-pair long stretches of DNA surrounding a protein octomer is called (a)
 A. histone
 B. chromatin
 C. nucleosome
 D. solenoid
Answer:


Question: A subunit of DNA and protein consisting of 134-base-pair long stretches of DNA surrounding a protein octomer is called (a)

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A subunit of DNA and protein consisting of 134-base-pair long stretches of DNA surrounding a protein octomer is called (a)
 A. histone
 B. chromatin
 C. nucleosome
 D. solenoid
Answer:


Question: A subunit of DNA and protein consisting of 134-base-pair long stretches of DNA surrounding a protein octomer is called (a)

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A subunit of DNA and protein consisting of 134-base-pair long stretches of DNA surrounding a protein octomer is called (a)
 A. histone
 B. chromatin
 C. nucleosome
 D. solenoid
Answer:


Question: A subunit of DNA and protein consisting of 134-base-pair long stretches of DNA surrounding a protein octomer is called (a)

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A subunit of DNA and protein consisting of 134-base-pair long stretches of DNA surrounding a protein octomer is called (a)
 A. histone
 B. chromatin
 C. nucleosome
 D. solenoid
Answer:


Question: Which of the following would be the most dependable environmental signal that a plant in a temperate ecosystem could use to initiate flowering at the correct time of the year?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following would be the most dependable environmental signal that a plant in a temperate ecosystem could use to initiate flowering at the correct time of the year?
 A. Circadian rhythm
 B. Photoperiod
 C. Changing air temperature
 D. Fluctuations in abscisic acid levels
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Which of the following would be the most dependable environmental signal that a plant in a temperate ecosystem could use to initiate flowering at the correct time of the year?
 A. Circadian rhythm
 B. Photoperiod
 C. Changing air temperature
 D. Fluctuations in abscisic acid levels
Answer:


Question: Which of the following would be the most dependable environmental signal that a plant in a temperate ecosystem could use to initiate flowering at the correct time of the year?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following would be the most dependable environmental signal that a plant in a temperate ecosystem could use to initiate flowering at the correct time of the year?
 A. Circadian rhythm
 B. Photoperiod
 C. Changing air temperature
 D. Fluctuations in abscisic acid levels
Answer:


Question: Which of the following would be the most dependable environmental signal that a plant in a temperate ecosystem could use to initiate flowering at the correct time of the year?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following would be the most dependable environmental signal that a plant in a temperate ecosystem could use to initiate flowering at the correct time of the year?
 A. Circadian rhythm
 B. Photoperiod
 C. Changing air temperature
 D. Fluctuations in abscisic acid levels
Answer:


Question: Which of the following would be the most dependable environmental signal that a plant in a temperate ecosystem could use to initiate flowering at the correct time of the year?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following would be the most dependable environmental signal that a plant in a temperate ecosystem could use to initiate flowering at the correct time of the year?
 A. Circadian rhythm
 B. Photoperiod
 C. Changing air temperature
 D. Fluctuations in abscisic acid levels
Answer:


Question: Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?
 A. It increases the concentration of OH-, causing the mitochondria to pump H+ to the intermembrane space.
 B. It increases the OH- concentration in the mitochondria matrix.
 C. It increases the acid concentration in the mitochondria matrix.
 D. It increases diffusion of H+ from the intermembrane space to the matrix.
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?
 A. It increases the concentration of OH-, causing the mitochondria to pump H+ to the intermembrane space.
 B. It increases the OH- concentration in the mitochondria matrix.
 C. It increases the acid concentration in the mitochondria matrix.
 D. It increases diffusion of H+ from the intermembrane space to the matrix.
Answer:


Question: Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?
 A. It increases the concentration of OH-, causing the mitochondria to pump H+ to the intermembrane space.
 B. It increases the OH- concentration in the mitochondria matrix.
 C. It increases the acid concentration in the mitochondria matrix.
 D. It increases diffusion of H+ from the intermembrane space to the matrix.
Answer:


Question: Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?
 A. It increases the concentration of OH-, causing the mitochondria to pump H+ to the intermembrane space.
 B. It increases the OH- concentration in the mitochondria matrix.
 C. It increases the acid concentration in the mitochondria matrix.
 D. It increases diffusion of H+ from the intermembrane space to the matrix.
Answer:


Question: Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mitochondria isolated and placed in a buffered solution with a low pH begin to manufacture ATP. Which of the following is the best explanation for the effect of low external pH?
 A. It increases the concentration of OH-, causing the mitochondria to pump H+ to the intermembrane space.
 B. It increases the OH- concentration in the mitochondria matrix.
 C. It increases the acid concentration in the mitochondria matrix.
 D. It increases diffusion of H+ from the intermembrane space to the matrix.
Answer:


Question: An organism belonging to the nekton is which one of the following?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: An organism belonging to the nekton is which one of the following?
 A. Whale
 B. Barnacle
 C. Cyanobacterium
 D. Protist
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: An organism belonging to the nekton is which one of the following?
 A. Whale
 B. Barnacle
 C. Cyanobacterium
 D. Protist
Answer:


Question: An organism belonging to the nekton is which one of the following?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: An organism belonging to the nekton is which one of the following?
 A. Whale
 B. Barnacle
 C. Cyanobacterium
 D. Protist
Answer:


Question: An organism belonging to the nekton is which one of the following?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: An organism belonging to the nekton is which one of the following?
 A. Whale
 B. Barnacle
 C. Cyanobacterium
 D. Protist
Answer:


Question: An organism belonging to the nekton is which one of the following?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: An organism belonging to the nekton is which one of the following?
 A. Whale
 B. Barnacle
 C. Cyanobacterium
 D. Protist
Answer:


Question: A behavioral response called a fixed action pattern shown by animals

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A behavioral response called a fixed action pattern shown by animals
 A. occurs the second time an animal is exposed to the correct stimulus at the appropriate time in its life
 B. occurs in the absence of sensory feedback
 C. is a motor response which once released may be terminated spontaneously
 D. is triggered by a number of sensory signals in the animal's environment
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: A behavioral response called a fixed action pattern shown by animals
 A. occurs the second time an animal is exposed to the correct stimulus at the appropriate time in its life
 B. occurs in the absence of sensory feedback
 C. is a motor response which once released may be terminated spontaneously
 D. is triggered by a number of sensory signals in the animal's environment
Answer:


Question: A behavioral response called a fixed action pattern shown by animals

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A behavioral response called a fixed action pattern shown by animals
 A. occurs the second time an animal is exposed to the correct stimulus at the appropriate time in its life
 B. occurs in the absence of sensory feedback
 C. is a motor response which once released may be terminated spontaneously
 D. is triggered by a number of sensory signals in the animal's environment
Answer:


Question: A behavioral response called a fixed action pattern shown by animals

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A behavioral response called a fixed action pattern shown by animals
 A. occurs the second time an animal is exposed to the correct stimulus at the appropriate time in its life
 B. occurs in the absence of sensory feedback
 C. is a motor response which once released may be terminated spontaneously
 D. is triggered by a number of sensory signals in the animal's environment
Answer:


Question: A behavioral response called a fixed action pattern shown by animals

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A behavioral response called a fixed action pattern shown by animals
 A. occurs the second time an animal is exposed to the correct stimulus at the appropriate time in its life
 B. occurs in the absence of sensory feedback
 C. is a motor response which once released may be terminated spontaneously
 D. is triggered by a number of sensory signals in the animal's environment
Answer:


Question: Which of the following adaptations would limit pollination by bees and promote hummingbird pollination?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following adaptations would limit pollination by bees and promote hummingbird pollination?
 A. Patterns of ultraviolet color on the petals
 B. Modified petals to provide a landing space
 C. Pendant (hanging) red-colored flowers
 D. Nectar with high sugar concentration produced in limited amounts
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Which of the following adaptations would limit pollination by bees and promote hummingbird pollination?
 A. Patterns of ultraviolet color on the petals
 B. Modified petals to provide a landing space
 C. Pendant (hanging) red-colored flowers
 D. Nectar with high sugar concentration produced in limited amounts
Answer:


Question: Which of the following adaptations would limit pollination by bees and promote hummingbird pollination?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following adaptations would limit pollination by bees and promote hummingbird pollination?
 A. Patterns of ultraviolet color on the petals
 B. Modified petals to provide a landing space
 C. Pendant (hanging) red-colored flowers
 D. Nectar with high sugar concentration produced in limited amounts
Answer:


Question: Which of the following adaptations would limit pollination by bees and promote hummingbird pollination?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following adaptations would limit pollination by bees and promote hummingbird pollination?
 A. Patterns of ultraviolet color on the petals
 B. Modified petals to provide a landing space
 C. Pendant (hanging) red-colored flowers
 D. Nectar with high sugar concentration produced in limited amounts
Answer:


Question: Which of the following adaptations would limit pollination by bees and promote hummingbird pollination?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following adaptations would limit pollination by bees and promote hummingbird pollination?
 A. Patterns of ultraviolet color on the petals
 B. Modified petals to provide a landing space
 C. Pendant (hanging) red-colored flowers
 D. Nectar with high sugar concentration produced in limited amounts
Answer:


Question: Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the
 A. megagametophyte
 B. endodermis
 C. embryo
 D. endosperm
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the
 A. megagametophyte
 B. endodermis
 C. embryo
 D. endosperm
Answer:


Question: Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the
 A. megagametophyte
 B. endodermis
 C. embryo
 D. endosperm
Answer:


Question: Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the
 A. megagametophyte
 B. endodermis
 C. embryo
 D. endosperm
Answer:


Question: Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Double fertilization is a unique feature of flowering plants. In this process, one sperm unites with the egg to yield a zygote. The second sperm unites with the polar nuclei to initiate the formation of the
 A. megagametophyte
 B. endodermis
 C. embryo
 D. endosperm
Answer:


Question: Mutation of homeotic cluster genes often results in which of the following developmental defects in Drosophila?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mutation of homeotic cluster genes often results in which of the following developmental defects in Drosophila?
 A. Absence of a group of contiguous segments
 B. Transformation of one segment into another
 C. Polarity defects in every segment along the anterior-posterior axis
 D. Tumor formation in imaginal discs
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Mutation of homeotic cluster genes often results in which of the following developmental defects in Drosophila?
 A. Absence of a group of contiguous segments
 B. Transformation of one segment into another
 C. Polarity defects in every segment along the anterior-posterior axis
 D. Tumor formation in imaginal discs
Answer:


Question: Mutation of homeotic cluster genes often results in which of the following developmental defects in Drosophila?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mutation of homeotic cluster genes often results in which of the following developmental defects in Drosophila?
 A. Absence of a group of contiguous segments
 B. Transformation of one segment into another
 C. Polarity defects in every segment along the anterior-posterior axis
 D. Tumor formation in imaginal discs
Answer:


Question: Mutation of homeotic cluster genes often results in which of the following developmental defects in Drosophila?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mutation of homeotic cluster genes often results in which of the following developmental defects in Drosophila?
 A. Absence of a group of contiguous segments
 B. Transformation of one segment into another
 C. Polarity defects in every segment along the anterior-posterior axis
 D. Tumor formation in imaginal discs
Answer:


Question: Mutation of homeotic cluster genes often results in which of the following developmental defects in Drosophila?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mutation of homeotic cluster genes often results in which of the following developmental defects in Drosophila?
 A. Absence of a group of contiguous segments
 B. Transformation of one segment into another
 C. Polarity defects in every segment along the anterior-posterior axis
 D. Tumor formation in imaginal discs
Answer:


Question: Root pressure created by a plant's roots causes water to enter the roots by

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Root pressure created by a plant's roots causes water to enter the roots by
 A. translocation
 B. adhesion
 C. osmosis
 D. capillary action
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Root pressure created by a plant's roots causes water to enter the roots by
 A. translocation
 B. adhesion
 C. osmosis
 D. capillary action
Answer:


Question: Root pressure created by a plant's roots causes water to enter the roots by

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Root pressure created by a plant's roots causes water to enter the roots by
 A. translocation
 B. adhesion
 C. osmosis
 D. capillary action
Answer:


Question: Root pressure created by a plant's roots causes water to enter the roots by

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Root pressure created by a plant's roots causes water to enter the roots by
 A. translocation
 B. adhesion
 C. osmosis
 D. capillary action
Answer:


Question: Root pressure created by a plant's roots causes water to enter the roots by

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Root pressure created by a plant's roots causes water to enter the roots by
 A. translocation
 B. adhesion
 C. osmosis
 D. capillary action
Answer:


Question: Cellular uptake of cholesterol occurs through internalization of low density lipoproteincholesterol complexes. Cholesterol uptake involves all of the following EXCEPT

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Cellular uptake of cholesterol occurs through internalization of low density lipoproteincholesterol complexes. Cholesterol uptake involves all of the following EXCEPT
 A. cell-surface receptors
 B. adhesion plaques
 C. endosome formation
 D. receptor-mediated endocytosis
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Cellular uptake of cholesterol occurs through internalization of low density lipoproteincholesterol complexes. Cholesterol uptake involves all of the following EXCEPT
 A. cell-surface receptors
 B. adhesion plaques
 C. endosome formation
 D. receptor-mediated endocytosis
Answer:


Question: Cellular uptake of cholesterol occurs through internalization of low density lipoproteincholesterol complexes. Cholesterol uptake involves all of the following EXCEPT

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Cellular uptake of cholesterol occurs through internalization of low density lipoproteincholesterol complexes. Cholesterol uptake involves all of the following EXCEPT
 A. cell-surface receptors
 B. adhesion plaques
 C. endosome formation
 D. receptor-mediated endocytosis
Answer:


Question: Cellular uptake of cholesterol occurs through internalization of low density lipoproteincholesterol complexes. Cholesterol uptake involves all of the following EXCEPT

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Cellular uptake of cholesterol occurs through internalization of low density lipoproteincholesterol complexes. Cholesterol uptake involves all of the following EXCEPT
 A. cell-surface receptors
 B. adhesion plaques
 C. endosome formation
 D. receptor-mediated endocytosis
Answer:


Question: Cellular uptake of cholesterol occurs through internalization of low density lipoproteincholesterol complexes. Cholesterol uptake involves all of the following EXCEPT

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Cellular uptake of cholesterol occurs through internalization of low density lipoproteincholesterol complexes. Cholesterol uptake involves all of the following EXCEPT
 A. cell-surface receptors
 B. adhesion plaques
 C. endosome formation
 D. receptor-mediated endocytosis
Answer:


Question: Two xylem plant cell types that provide support and conduct water and minerals are the

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Two xylem plant cell types that provide support and conduct water and minerals are the
 A. collenchyma and sclerenchyma
 B. sieve tube members and companion cells
 C. tracheids and vessel elements
 D. vessel elements and companion cells
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Two xylem plant cell types that provide support and conduct water and minerals are the
 A. collenchyma and sclerenchyma
 B. sieve tube members and companion cells
 C. tracheids and vessel elements
 D. vessel elements and companion cells
Answer:


Question: Two xylem plant cell types that provide support and conduct water and minerals are the

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Two xylem plant cell types that provide support and conduct water and minerals are the
 A. collenchyma and sclerenchyma
 B. sieve tube members and companion cells
 C. tracheids and vessel elements
 D. vessel elements and companion cells
Answer:


Question: Two xylem plant cell types that provide support and conduct water and minerals are the

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Two xylem plant cell types that provide support and conduct water and minerals are the
 A. collenchyma and sclerenchyma
 B. sieve tube members and companion cells
 C. tracheids and vessel elements
 D. vessel elements and companion cells
Answer:


Question: Two xylem plant cell types that provide support and conduct water and minerals are the

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Two xylem plant cell types that provide support and conduct water and minerals are the
 A. collenchyma and sclerenchyma
 B. sieve tube members and companion cells
 C. tracheids and vessel elements
 D. vessel elements and companion cells
Answer:


Question: Which of the following statements about excretory organs is true?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following statements about excretory organs is true?
 A. The kidneys of saltwater fishes produce urine hyperosmotic to their tissues.
 B. The kidneys of desert mammals produce urine that is hypoosmotic to the urine of freshwater fishes.
 C. Malpighian tubules allow insects to excrete waste through the exoskeleton.
 D. Juxtamedullary nephrons in the mammalian kidney allow the organism to produce hyperosmotic urine.
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Which of the following statements about excretory organs is true?
 A. The kidneys of saltwater fishes produce urine hyperosmotic to their tissues.
 B. The kidneys of desert mammals produce urine that is hypoosmotic to the urine of freshwater fishes.
 C. Malpighian tubules allow insects to excrete waste through the exoskeleton.
 D. Juxtamedullary nephrons in the mammalian kidney allow the organism to produce hyperosmotic urine.
Answer:


Question: Which of the following statements about excretory organs is true?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following statements about excretory organs is true?
 A. The kidneys of saltwater fishes produce urine hyperosmotic to their tissues.
 B. The kidneys of desert mammals produce urine that is hypoosmotic to the urine of freshwater fishes.
 C. Malpighian tubules allow insects to excrete waste through the exoskeleton.
 D. Juxtamedullary nephrons in the mammalian kidney allow the organism to produce hyperosmotic urine.
Answer:


Question: Which of the following statements about excretory organs is true?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following statements about excretory organs is true?
 A. The kidneys of saltwater fishes produce urine hyperosmotic to their tissues.
 B. The kidneys of desert mammals produce urine that is hypoosmotic to the urine of freshwater fishes.
 C. Malpighian tubules allow insects to excrete waste through the exoskeleton.
 D. Juxtamedullary nephrons in the mammalian kidney allow the organism to produce hyperosmotic urine.
Answer:


Question: Which of the following statements about excretory organs is true?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following statements about excretory organs is true?
 A. The kidneys of saltwater fishes produce urine hyperosmotic to their tissues.
 B. The kidneys of desert mammals produce urine that is hypoosmotic to the urine of freshwater fishes.
 C. Malpighian tubules allow insects to excrete waste through the exoskeleton.
 D. Juxtamedullary nephrons in the mammalian kidney allow the organism to produce hyperosmotic urine.
Answer:


Question: Mimicry is a strategy that has evolved through natural selection to increase the fitness of organisms to their environment. Which of the following represents a form of Batesian mimicry?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mimicry is a strategy that has evolved through natural selection to increase the fitness of organisms to their environment. Which of the following represents a form of Batesian mimicry?
 A. A type of millipede that is toxic to a toad is permanently avoided by the toad following the toad's initial attempt to consume it.
 B. A moth exhibits false eyes at its tail end in order to disorient predators.
 C. A moth exhibits nearly identical coloration to that of a stinging bee.
 D. A ground-nesting gull chick displays a coloration pattern that is nearly indistinguishable from its surroundings.
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Mimicry is a strategy that has evolved through natural selection to increase the fitness of organisms to their environment. Which of the following represents a form of Batesian mimicry?
 A. A type of millipede that is toxic to a toad is permanently avoided by the toad following the toad's initial attempt to consume it.
 B. A moth exhibits false eyes at its tail end in order to disorient predators.
 C. A moth exhibits nearly identical coloration to that of a stinging bee.
 D. A ground-nesting gull chick displays a coloration pattern that is nearly indistinguishable from its surroundings.
Answer:


Question: Mimicry is a strategy that has evolved through natural selection to increase the fitness of organisms to their environment. Which of the following represents a form of Batesian mimicry?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mimicry is a strategy that has evolved through natural selection to increase the fitness of organisms to their environment. Which of the following represents a form of Batesian mimicry?
 A. A type of millipede that is toxic to a toad is permanently avoided by the toad following the toad's initial attempt to consume it.
 B. A moth exhibits false eyes at its tail end in order to disorient predators.
 C. A moth exhibits nearly identical coloration to that of a stinging bee.
 D. A ground-nesting gull chick displays a coloration pattern that is nearly indistinguishable from its surroundings.
Answer:


Question: Mimicry is a strategy that has evolved through natural selection to increase the fitness of organisms to their environment. Which of the following represents a form of Batesian mimicry?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mimicry is a strategy that has evolved through natural selection to increase the fitness of organisms to their environment. Which of the following represents a form of Batesian mimicry?
 A. A type of millipede that is toxic to a toad is permanently avoided by the toad following the toad's initial attempt to consume it.
 B. A moth exhibits false eyes at its tail end in order to disorient predators.
 C. A moth exhibits nearly identical coloration to that of a stinging bee.
 D. A ground-nesting gull chick displays a coloration pattern that is nearly indistinguishable from its surroundings.
Answer:


Question: Mimicry is a strategy that has evolved through natural selection to increase the fitness of organisms to their environment. Which of the following represents a form of Batesian mimicry?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Mimicry is a strategy that has evolved through natural selection to increase the fitness of organisms to their environment. Which of the following represents a form of Batesian mimicry?
 A. A type of millipede that is toxic to a toad is permanently avoided by the toad following the toad's initial attempt to consume it.
 B. A moth exhibits false eyes at its tail end in order to disorient predators.
 C. A moth exhibits nearly identical coloration to that of a stinging bee.
 D. A ground-nesting gull chick displays a coloration pattern that is nearly indistinguishable from its surroundings.
Answer:


Question: Keystone species are thought to have profound effects on the structure and composition of ecological communities because they

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Keystone species are thought to have profound effects on the structure and composition of ecological communities because they
 A. tend to reduce diversity by eliminating food resources for other species
 B. provide the foundation for food webs
 C. are more abundant than most other species in their communities
 D. can prevent superior competitors from driving inferior competitors to local extinction
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Keystone species are thought to have profound effects on the structure and composition of ecological communities because they
 A. tend to reduce diversity by eliminating food resources for other species
 B. provide the foundation for food webs
 C. are more abundant than most other species in their communities
 D. can prevent superior competitors from driving inferior competitors to local extinction
Answer:


Question: Keystone species are thought to have profound effects on the structure and composition of ecological communities because they

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Keystone species are thought to have profound effects on the structure and composition of ecological communities because they
 A. tend to reduce diversity by eliminating food resources for other species
 B. provide the foundation for food webs
 C. are more abundant than most other species in their communities
 D. can prevent superior competitors from driving inferior competitors to local extinction
Answer:


Question: Keystone species are thought to have profound effects on the structure and composition of ecological communities because they

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Keystone species are thought to have profound effects on the structure and composition of ecological communities because they
 A. tend to reduce diversity by eliminating food resources for other species
 B. provide the foundation for food webs
 C. are more abundant than most other species in their communities
 D. can prevent superior competitors from driving inferior competitors to local extinction
Answer:


Question: Keystone species are thought to have profound effects on the structure and composition of ecological communities because they

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Keystone species are thought to have profound effects on the structure and composition of ecological communities because they
 A. tend to reduce diversity by eliminating food resources for other species
 B. provide the foundation for food webs
 C. are more abundant than most other species in their communities
 D. can prevent superior competitors from driving inferior competitors to local extinction
Answer:


Question: Which of the following is a reason that geneticists use mitochondrial DNA (mtDNA) to study the relatedness of animal populations?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is a reason that geneticists use mitochondrial DNA (mtDNA) to study the relatedness of animal populations?
 A. mtDNA mutates at a slower rate than nuclear DNA.
 B. mtDNA is passed from mother to child and is free from recombination that occurs between pairs of chromosomes.
 C. There are few single nucleotide polymorphisms in the hypervariable, noncoding regions.
 D. All mitochondrial proteins are coded for by mitochondrial genes.
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Which of the following is a reason that geneticists use mitochondrial DNA (mtDNA) to study the relatedness of animal populations?
 A. mtDNA mutates at a slower rate than nuclear DNA.
 B. mtDNA is passed from mother to child and is free from recombination that occurs between pairs of chromosomes.
 C. There are few single nucleotide polymorphisms in the hypervariable, noncoding regions.
 D. All mitochondrial proteins are coded for by mitochondrial genes.
Answer:


Question: Which of the following is a reason that geneticists use mitochondrial DNA (mtDNA) to study the relatedness of animal populations?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is a reason that geneticists use mitochondrial DNA (mtDNA) to study the relatedness of animal populations?
 A. mtDNA mutates at a slower rate than nuclear DNA.
 B. mtDNA is passed from mother to child and is free from recombination that occurs between pairs of chromosomes.
 C. There are few single nucleotide polymorphisms in the hypervariable, noncoding regions.
 D. All mitochondrial proteins are coded for by mitochondrial genes.
Answer:


Question: Which of the following is a reason that geneticists use mitochondrial DNA (mtDNA) to study the relatedness of animal populations?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is a reason that geneticists use mitochondrial DNA (mtDNA) to study the relatedness of animal populations?
 A. mtDNA mutates at a slower rate than nuclear DNA.
 B. mtDNA is passed from mother to child and is free from recombination that occurs between pairs of chromosomes.
 C. There are few single nucleotide polymorphisms in the hypervariable, noncoding regions.
 D. All mitochondrial proteins are coded for by mitochondrial genes.
Answer:


Question: Which of the following is a reason that geneticists use mitochondrial DNA (mtDNA) to study the relatedness of animal populations?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is a reason that geneticists use mitochondrial DNA (mtDNA) to study the relatedness of animal populations?
 A. mtDNA mutates at a slower rate than nuclear DNA.
 B. mtDNA is passed from mother to child and is free from recombination that occurs between pairs of chromosomes.
 C. There are few single nucleotide polymorphisms in the hypervariable, noncoding regions.
 D. All mitochondrial proteins are coded for by mitochondrial genes.
Answer:


Question: A quote from a natural resources text states: "Whenever the original ecosystem becomes restructured by man, it tends to become simplified, with a resultant disruption of the stabilizing influences of density-dependent regulatory factors." This implies that in a disturbed ecosystem

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A quote from a natural resources text states: "Whenever the original ecosystem becomes restructured by man, it tends to become simplified, with a resultant disruption of the stabilizing influences of density-dependent regulatory factors." This implies that in a disturbed ecosystem
 A. there exist large populations of a low number of species
 B. population levels of a species are kept at equilibrium through natural regulatory mechanisms
 C. a given prey organism is subject to higher predation rates by more diverse predators
 D. a given prey organism is less likely to undergo a population surge
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: A quote from a natural resources text states: "Whenever the original ecosystem becomes restructured by man, it tends to become simplified, with a resultant disruption of the stabilizing influences of density-dependent regulatory factors." This implies that in a disturbed ecosystem
 A. there exist large populations of a low number of species
 B. population levels of a species are kept at equilibrium through natural regulatory mechanisms
 C. a given prey organism is subject to higher predation rates by more diverse predators
 D. a given prey organism is less likely to undergo a population surge
Answer:


Question: A quote from a natural resources text states: "Whenever the original ecosystem becomes restructured by man, it tends to become simplified, with a resultant disruption of the stabilizing influences of density-dependent regulatory factors." This implies that in a disturbed ecosystem

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A quote from a natural resources text states: "Whenever the original ecosystem becomes restructured by man, it tends to become simplified, with a resultant disruption of the stabilizing influences of density-dependent regulatory factors." This implies that in a disturbed ecosystem
 A. there exist large populations of a low number of species
 B. population levels of a species are kept at equilibrium through natural regulatory mechanisms
 C. a given prey organism is subject to higher predation rates by more diverse predators
 D. a given prey organism is less likely to undergo a population surge
Answer:


Question: A quote from a natural resources text states: "Whenever the original ecosystem becomes restructured by man, it tends to become simplified, with a resultant disruption of the stabilizing influences of density-dependent regulatory factors." This implies that in a disturbed ecosystem

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A quote from a natural resources text states: "Whenever the original ecosystem becomes restructured by man, it tends to become simplified, with a resultant disruption of the stabilizing influences of density-dependent regulatory factors." This implies that in a disturbed ecosystem
 A. there exist large populations of a low number of species
 B. population levels of a species are kept at equilibrium through natural regulatory mechanisms
 C. a given prey organism is subject to higher predation rates by more diverse predators
 D. a given prey organism is less likely to undergo a population surge
Answer:


Question: A quote from a natural resources text states: "Whenever the original ecosystem becomes restructured by man, it tends to become simplified, with a resultant disruption of the stabilizing influences of density-dependent regulatory factors." This implies that in a disturbed ecosystem

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A quote from a natural resources text states: "Whenever the original ecosystem becomes restructured by man, it tends to become simplified, with a resultant disruption of the stabilizing influences of density-dependent regulatory factors." This implies that in a disturbed ecosystem
 A. there exist large populations of a low number of species
 B. population levels of a species are kept at equilibrium through natural regulatory mechanisms
 C. a given prey organism is subject to higher predation rates by more diverse predators
 D. a given prey organism is less likely to undergo a population surge
Answer:


Question: A female fruit fly bearing linked genes that produce the phenotype gray body and normal wings mates with a male fruit fly of phenotype black body and vestigial wings. The presence of gray-bodied, vestigialwinged flies among the progeny is best explained by

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A female fruit fly bearing linked genes that produce the phenotype gray body and normal wings mates with a male fruit fly of phenotype black body and vestigial wings. The presence of gray-bodied, vestigialwinged flies among the progeny is best explained by
 A. crossing over
 B. independent assortment
 C. segregation of alleles
 D. penetrance
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: A female fruit fly bearing linked genes that produce the phenotype gray body and normal wings mates with a male fruit fly of phenotype black body and vestigial wings. The presence of gray-bodied, vestigialwinged flies among the progeny is best explained by
 A. crossing over
 B. independent assortment
 C. segregation of alleles
 D. penetrance
Answer:


Question: A female fruit fly bearing linked genes that produce the phenotype gray body and normal wings mates with a male fruit fly of phenotype black body and vestigial wings. The presence of gray-bodied, vestigialwinged flies among the progeny is best explained by

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A female fruit fly bearing linked genes that produce the phenotype gray body and normal wings mates with a male fruit fly of phenotype black body and vestigial wings. The presence of gray-bodied, vestigialwinged flies among the progeny is best explained by
 A. crossing over
 B. independent assortment
 C. segregation of alleles
 D. penetrance
Answer:


Question: A female fruit fly bearing linked genes that produce the phenotype gray body and normal wings mates with a male fruit fly of phenotype black body and vestigial wings. The presence of gray-bodied, vestigialwinged flies among the progeny is best explained by

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A female fruit fly bearing linked genes that produce the phenotype gray body and normal wings mates with a male fruit fly of phenotype black body and vestigial wings. The presence of gray-bodied, vestigialwinged flies among the progeny is best explained by
 A. crossing over
 B. independent assortment
 C. segregation of alleles
 D. penetrance
Answer:


Question: A female fruit fly bearing linked genes that produce the phenotype gray body and normal wings mates with a male fruit fly of phenotype black body and vestigial wings. The presence of gray-bodied, vestigialwinged flies among the progeny is best explained by

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: A female fruit fly bearing linked genes that produce the phenotype gray body and normal wings mates with a male fruit fly of phenotype black body and vestigial wings. The presence of gray-bodied, vestigialwinged flies among the progeny is best explained by
 A. crossing over
 B. independent assortment
 C. segregation of alleles
 D. penetrance
Answer:


Question: Which of the following active pools of carbon is the largest on Earth and contributes the most to carbon cycling?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following active pools of carbon is the largest on Earth and contributes the most to carbon cycling?
 A. The atmosphere
 B. Rain-forest vegetation
 C. Recoverable fossil fuels
 D. The oceans
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Which of the following active pools of carbon is the largest on Earth and contributes the most to carbon cycling?
 A. The atmosphere
 B. Rain-forest vegetation
 C. Recoverable fossil fuels
 D. The oceans
Answer:


Question: Which of the following active pools of carbon is the largest on Earth and contributes the most to carbon cycling?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following active pools of carbon is the largest on Earth and contributes the most to carbon cycling?
 A. The atmosphere
 B. Rain-forest vegetation
 C. Recoverable fossil fuels
 D. The oceans
Answer:


Question: Which of the following active pools of carbon is the largest on Earth and contributes the most to carbon cycling?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following active pools of carbon is the largest on Earth and contributes the most to carbon cycling?
 A. The atmosphere
 B. Rain-forest vegetation
 C. Recoverable fossil fuels
 D. The oceans
Answer:


Question: Which of the following active pools of carbon is the largest on Earth and contributes the most to carbon cycling?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following active pools of carbon is the largest on Earth and contributes the most to carbon cycling?
 A. The atmosphere
 B. Rain-forest vegetation
 C. Recoverable fossil fuels
 D. The oceans
Answer:


Question: Charles Darwin's proposed conditions for natural selection encompass all of the following with regard to a given population EXCEPT

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Charles Darwin's proposed conditions for natural selection encompass all of the following with regard to a given population EXCEPT
 A. inheritance of both "fit" and "unfit" genes
 B. differential survival and reproductive success
 C. competition for limited resources
 D. overproduction of offspring
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Charles Darwin's proposed conditions for natural selection encompass all of the following with regard to a given population EXCEPT
 A. inheritance of both "fit" and "unfit" genes
 B. differential survival and reproductive success
 C. competition for limited resources
 D. overproduction of offspring
Answer:


Question: Charles Darwin's proposed conditions for natural selection encompass all of the following with regard to a given population EXCEPT

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Charles Darwin's proposed conditions for natural selection encompass all of the following with regard to a given population EXCEPT
 A. inheritance of both "fit" and "unfit" genes
 B. differential survival and reproductive success
 C. competition for limited resources
 D. overproduction of offspring
Answer:


Question: Charles Darwin's proposed conditions for natural selection encompass all of the following with regard to a given population EXCEPT

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Charles Darwin's proposed conditions for natural selection encompass all of the following with regard to a given population EXCEPT
 A. inheritance of both "fit" and "unfit" genes
 B. differential survival and reproductive success
 C. competition for limited resources
 D. overproduction of offspring
Answer:


Question: Charles Darwin's proposed conditions for natural selection encompass all of the following with regard to a given population EXCEPT

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Charles Darwin's proposed conditions for natural selection encompass all of the following with regard to a given population EXCEPT
 A. inheritance of both "fit" and "unfit" genes
 B. differential survival and reproductive success
 C. competition for limited resources
 D. overproduction of offspring
Answer:


Question: Which of the following is a correct statement about the cohesion-tension theory for the ascent of water in the xylem?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is a correct statement about the cohesion-tension theory for the ascent of water in the xylem?
 A. The evaporation of water from leaf mesophyll cells generates tension in the water column.
 B. Water moves from a source region with high hydrostatic pressure to a sink region with low hydrostatic pressure.
 C. The cohesion of water molecules is responsible for the formation of embolisms (air bubbles) in the water column.
 D. Living cells of the xylem provide the main conduit for an ascent of water.
Answer:

Context:
The following are multiple choice questions (with answers) about college biology.

Question: Which of the following represents an accurate statement concerning arthropods?
 A. They possess an exoskeleton composed primarily of peptidoglycan.
 B. They possess an open circulatory system with a dorsal heart.
 C. They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources.
 D. They lack paired, jointed appendages.
Answer: B

Question: In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer?
 A. 1/400
 B. 19/400
 C. 20/400
 D. 38/400
Answer: D

Question: The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
 A. the human and bird are polyphyletic species
 B. a human's and bird's evolution is convergent
 C. the human and bird belong to a clade
 D. the human and bird developed by analogy
Answer: C

Question: According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by
 A. an ATP-dependent pressure-flow pump
 B. a water-pressure potential gradient
 C. transpiration
 D. apoplastic diffusion
Answer: B

Question: Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis?
 A. Telomeres
 B. Centromeres
 C. Nucleosomes
 D. Spliceosomes
Answer: B

Question: Which of the following is a correct statement about the cohesion-tension theory for the ascent of water in the xylem?
 A. The evaporation of water from leaf mesophyll cells generates tension in the water column.
 B. Water moves from a source region with high hydrostatic pressure to a sink region with low hydrostatic pressure.
 C. The cohesion of water molecules is responsible for the formation of embolisms (air bubbles) in the water column.
 D. Living cells of the xylem provide the main conduit for an ascent of water.
Answer:


Question: Which of the following is a correct statement about the cohesion-tension theory for the ascent of water in the xylem?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is a correct statement about the cohesion-tension theory for the ascent of water in the xylem?
 A. The evaporation of water from leaf mesophyll cells generates tension in the water column.
 B. Water moves from a source region with high hydrostatic pressure to a sink region with low hydrostatic pressure.
 C. The cohesion of water molecules is responsible for the formation of embolisms (air bubbles) in the water column.
 D. Living cells of the xylem provide the main conduit for an ascent of water.
Answer:


Question: Which of the following is a correct statement about the cohesion-tension theory for the ascent of water in the xylem?

college_biology

Choices:
- A
- B
- C
- D

Question:
Question: Which of the following is a correct statement about the cohesion-tension theory for the ascent of water in the xylem?
 A. The evaporation of water from leaf mesophyll cells generates tension in the water column.
 B. Water moves from a source region with high hydrostatic pressure to a sink region with low hydrostatic pressure.
 C. The cohesion of water molecules is responsible for the formation of embolisms (air bubbles) in the water column.
 D. Living cells of the xylem provide the main conduit for an ascent of water.
Answer: