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null | Question: When a fluorine atom gains an electron, it becomes a negative what?
Options:
A. potassium ion
B. sulfide ion
C. fluoride ion
D. hydrogen ion
Answer: | C |
null | Question: What does antifreeze do to the boiling point of coolant?
Options:
A. lowers it
B. accelerates it
C. raises it
D. has no effect
Answer: | C |
null | Question: What is the principal blood vessel through which blood leaves the heart in order to circulate around the body?
Options:
A. aorta
B. the pulmonary vein
C. the pulmonary artery
D. the superior vena cava
Answer: | A |
null | Question: What is the horizontal distance between two waves, measured at a common point (crest to crest or trough to trough), called?
Options:
A. linear
B. frequency
C. absorption
D. wavelength
Answer: | D |
null | Question: What are sensory cells?
Options:
A. specialized neurons or squirm cells
B. specialized neurons or navigable cells
C. specialized epithelial or squirm cells
D. specialized neurons or epithelial cells
Answer: | D |
null | Question: What type of galaxies have a rotating disk of stars and dust, a bulge in the middle, and several arms?
Options:
A. round galaxies
B. spherical galaxies
C. spiral galaxies
D. pinwheel galaxies
Answer: | C |
null | Question: All chemical reactions require what to get started?
Options:
A. primary energy
B. conductivity energy
C. activation energy
D. spiked energy
Answer: | C |
null | Question: Light retains its original color under water because what remains the same when light is refracted?
Options:
A. density
B. frequency
C. sound
D. wave length
Answer: | B |
null | Question: The nitrogenous bases found in nucleotides are classified as pyrimidines or what?
Options:
A. terpenes
B. Fallen
C. Science
D. purines
Answer: | D |
null | Question: What does subduction of a plate lead to?
Options:
A. swell and volcanism
B. bending and volcanism
C. pressure and volcanism
D. melting and volcanism
Answer: | D |
null | Question: What is the term for land that has permanently frozen soil?
Options:
A. ice desert
B. permafrost
C. snow-field
D. Arctic
Answer: | B |
null | Question: The afferent arterioles service about 1.3 million of what in each kidney?
Options:
A. neurons
B. dendrites
C. nephrons
D. axons
Answer: | C |
null | Question: In how many basic was can substances cross the plasma membrane?
Options:
A. four
B. one
C. three
D. two
Answer: | D |
null | Question: The organ systems of the body work together to carry out life processes and maintain what?
Options:
A. freshness
B. movement
C. homeostasis
D. consciousness
Answer: | C |
null | Question: The earth's magnetic poles have done what repeatedly in the past?
Options:
A. switched places
B. stayed the same
C. rotated
D. demagnetized
Answer: | A |
null | Question: What protects tissues of the central nervous system from changes in ph?
Options:
A. cerebrum
B. fatty ions
C. bicarbonate ions
D. sucrose ions
Answer: | C |
null | Question: The three types of mammals are characterized by their method of what?
Options:
A. specializaiton
B. reproduction
C. pattern
D. differentiation
Answer: | B |
null | Question: Once a plant cell becomes specialized, what can they no longer do?
Options:
A. photosynthesis
B. divide
C. cellular respiration
D. osmosis
Answer: | B |
null | Question: What provides the identities of the reactants and products involved in the chemical change?
Options:
A. electron shells
B. genome sequence
C. chemical formulas
D. atomic numbers
Answer: | C |
null | Question: What kind of ions are named by adding the suffix -ide to the end?
Options:
A. similar ions
B. particular ions
C. negative ions
D. positive ions
Answer: | C |
null | Question: Glaciers modify the landscape by what?
Options:
A. silt
B. truncation
C. erosion
D. sediment
Answer: | C |
null | Question: A recent deadly explosion in the gulf of mexico exemplified what source of ocean pollution?
Options:
A. oil spill
B. algal bloom
C. greenhouse gases
D. fracking disaster
Answer: | A |
null | Question: Winds are caused by differences in what?
Options:
A. elevation
B. temperature
C. water pressure
D. air pressure
Answer: | D |
null | Question: Mercury and lead, which was once widely used in paint and gasoline, are examples of what type of metals?
Options:
A. sulfuric heavy metals
B. gaseous heavy metals
C. toxic heavy metals
D. alloys
Answer: | C |
null | Question: What kind of reaction is a reaction in which two or more substances combine to form a single new substance?
Options:
A. combination reaction
B. power reaction
C. compounding reaction
D. chemical reaction
Answer: | A |
null | Question: The rate of the accumulation of neutral what serves as a type of population-based biological clock?
Options:
A. prokaryotic
B. enzymes
C. polymorphisms
D. eukaryotes
Answer: | C |
null | Question: Liquids that mix with water in all proportions are usually polar substances or substances that form these?
Options:
A. compressed bonds
B. atmospheric bonds
C. hydrogen bonds
D. silicon bonds
Answer: | C |
null | Question: Dalton's law and henry's law both describe aspects of what type of exchange?
Options:
A. liquid
B. electron
C. energy
D. gas
Answer: | D |
null | Question: Since 1900, four of the five earthquakes of the greatest magnitude occurred near what appropriately nicknamed pacific location?
Options:
A. shower of fire
B. ring of fire
C. seismic zone
D. quake epicenter
Answer: | B |
null | Question: In which direction does water travel?
Options:
A. backwards
B. northwest
C. downhill
D. uphill
Answer: | C |
null | Question: What is the most prevalent gas in the atmosphere, but not the most vital for life?
Options:
A. oxygen
B. argon
C. carbon dioxide
D. nitrogen
Answer: | D |
null | Question: What is the term for the most abundant species in a community, characterized by high competitive abilities?
Options:
A. dominant species
B. carnivores
C. keystone species
D. merging species
Answer: | A |
null | Question: Both pathways that isolate a population reproductively in some form, allopatric and sympatric describe what, which means the creation of new species?
Options:
A. bacterial
B. extinction
C. speciation
D. accumulation
Answer: | C |
null | Question: The laws of what field of science apply to galaxies and atoms, an indication of the underlying unity in the universe?
Options:
A. geology
B. physics
C. anthropology
D. astronomy
Answer: | B |
null | Question: Oxygen has the second highest electronegativity of any element; consequently, it prefers to share or accept electrons from other elements. only with fluorine does oxygen form compounds in this?
Options:
A. positive oxidation states
B. negative Oxidation States
C. chemical oxidation states
D. liquid oxidation states
Answer: | A |
null | Question: What do you call the hard case that surrounds the soft parts of some animals?
Options:
A. muscles
B. membrane
C. shell
D. exoskeleton
Answer: | D |
null | Question: What is used to fluoridate drinking water to promote dental health
Options:
A. carbon fluorine
B. calcium fluoride
C. calcium fluorine
D. carbon fluoride
Answer: | B |
null | Question: What is the name for the cooler, darker areas on the sun’s surface?
Options:
A. aurora borealis
B. anomalies
C. sunspots
D. corona
Answer: | C |
null | Question: The first plants probably evolved from what?
Options:
A. dry green algae
B. moss
C. aquatic green algae
D. mould
Answer: | C |
null | Question: The rate that energy is released is known as
Options:
A. heat
B. flow
C. power
D. pressure
Answer: | C |
null | Question: Most of the heat that enters the mesosphere comes from where?
Options:
A. the stratosphere
B. Exosphere
C. Earth's surface
D. Troposphere
Answer: | A |
null | Question: What is the term for how the air feels at its temperature and humidity
Options:
A. atmospheric humidity
B. relative humidity
C. initial humidity
D. climate sensory index
Answer: | B |
null | Question: Orbiting at a fairly typical 370 kilometers, the international space station is an example of what?
Options:
A. manmade satellite
B. alteration satellite
C. high orbit satellite
D. flagella satellite
Answer: | A |
null | Question: Loss of muscle mass due to breakdown of structural proteins is known as what?
Options:
A. exhaustion
B. distrophy
C. mutation
D. atrophy
Answer: | D |
null | Question: Many innovative farming methods can prevent what type of erosion, which is especially important in agriculture?
Options:
A. fertilizer erosion
B. soil erosion
C. vegetable erosion
D. plains erosion
Answer: | B |
null | Question: Name the two types of water turtles live in.
Options:
A. river water and lake water
B. arctic water and ice water
C. ocean water and sea water
D. ocean water and fresh water
Answer: | D |
null | Question: Abundant in unpolluted ponds and streams, planarians prey on smaller animals or feed on?
Options:
A. unidentified animals
B. algae
C. fungi
D. dead animals
Answer: | D |
null | Question: What strong and lightweight manmade material is derived from hydrocarbons and used in ropes, tents and parachutes?
Options:
A. aluminum
B. styrofoam
C. nylon
D. cellophane
Answer: | C |
null | Question: Which planet is closest to the sun?
Options:
A. Jupiter
B. Earth
C. Venus
D. mercury
Answer: | D |
null | Question: What determines whether a volcanic eruption will be explosive or not?
Options:
A. curve of magma
B. lava temperature
C. thickness of magma
D. magma velocity
Answer: | C |
null | Question: What is the scientific term for stored energy an object has due to its position or shape?
Options:
A. potential energy
B. mechanical energy
C. new energy
D. repeat energy
Answer: | A |
null | Question: What was diorite commonly used for in ancient civilizations?
Options:
A. currency
B. school
C. medicine
D. art
Answer: | D |
null | Question: Natural gas is often found along with what other fossil fuels in underground deposits?
Options:
A. repository and oil
B. methane and oil
C. coal and oil
D. coal and methane
Answer: | C |
null | Question: What absorbs, scatters, or reflects most incoming solar radiation in the atmosphere?
Options:
A. ice and dust
B. clouds and dust
C. clouds and sand
D. coulds and minerals
Answer: | B |
null | Question: What kind of respiration allows rapid production of atp in low oxygen situations?
Options:
A. anabolic
B. anaerobic
C. enzymatic
D. aerobic
Answer: | B |
null | Question: Which system refers to the skin and its accessory structures?
Options:
A. malpighian system
B. integumentary system
C. digestive system
D. tomoxia system
Answer: | B |
null | Question: What is dna transcribed into after being replicated?
Options:
A. rna
B. protein
C. gene
D. diploid chromosomes
Answer: | A |
null | Question: What converters are used on motor vehicles to break down pollutants in exhaust to non-toxic compounds?
Options:
A. back converters
B. solvent converters
C. outer converters
D. catalytic converters
Answer: | D |
null | Question: Molecules of gas are rare in what outermost region of the planet's atmosphere?
Options:
A. thermosphere
B. ozone layer
C. ionosphere
D. exosphere
Answer: | D |
null | Question: What causes earthquakes at mid-ocean ridges to be small and shallow?
Options:
A. plates are thick , young , and cold
B. plates are thick , old , and hot
C. plates are thin , young , and hot
D. plates are thin , young , and cold
Answer: | C |
null | Question: In humans, there are five primary tastes, and each taste has only one corresponding type of what?
Options:
A. organ
B. receptor
C. neuron
D. membrane
Answer: | B |
null | Question: Which hormones work together to control the level of glucose in the blood?
Options:
A. insulin and glucagon
B. testosterone and insulin
C. insulin and estrogen
D. serotonin and glucagon
Answer: | A |
null | Question: The average number of individuals per unit of area or volume is referred to as a population's what?
Options:
A. diameter
B. output
C. increase
D. density
Answer: | D |
null | Question: What is given off from plants and taken in by animals?
Options:
A. methane
B. sulfur
C. nitrogen
D. oxygen
Answer: | D |
null | Question: What are electromagnetic waves created by?
Options:
A. Static Charges
B. particle charges
C. oscillating charges
D. gravitational charges
Answer: | C |
null | Question: What is necessary for organisms to survive in the deepest parts of the ocean?
Options:
A. mutation
B. competition
C. reflexes
D. adaptations
Answer: | D |
null | Question: Among vertebrates, what broad category of animals is most capable of learning?
Options:
A. birds
B. mammals
C. fish
D. reptiles
Answer: | B |
null | Question: Each enzyme has an optimal what at which its reaction rate is greatest?
Options:
A. precipitation
B. weight
C. size
D. temperature
Answer: | D |
null | Question: What is the minimum number of loops a circuit can have?
Options:
A. 1
B. 3
C. 2
D. .1
Answer: | A |
null | Question: What are different forms of the same gene?
Options:
A. peptides
B. alleles
C. nuerons
D. genomes
Answer: | B |
null | Question: Why does water have a high surface tension?
Options:
A. oxygenation
B. helium bonding
C. high freezing point
D. hydrogen bonding
Answer: | D |
null | Question: What is another term for nearsightedness?
Options:
A. hypoxia
B. astigmatism
C. myopia
D. anemia
Answer: | C |
null | Question: Large or small numbers are expressed in scientific notation, which use powers of this?
Options:
A. 16
B. 10
C. 4
D. 2
Answer: | B |
null | Question: Passive immunity arises from the transfer of what to an individual, without requiring them to mount their own active immune response?
Options:
A. viruses
B. antibodies
C. parasites
D. bacteria
Answer: | B |
null | Question: Most mercury compounds decompose when they are?
Options:
A. heated
B. filled
C. mixed
D. cooled
Answer: | A |
null | Question: The elements are arranged in rows, each representing the filling of what shell?
Options:
A. plasma membrane
B. neutron
C. proton
D. electron
Answer: | D |
null | Question: Dynamite is an example of what type of potential energy?
Options:
A. chemical
B. thermal
C. carbon
D. mineral
Answer: | A |
null | Question: What do you call large, y-shaped proteins that recognize and bind to antigens?
Options:
A. antibodies
B. proteins
C. parasites
D. membranes
Answer: | A |
null | Question: Invertebrates (and higher animals) can also be placed in one of two groups based on how they develop as what?
Options:
A. hormones
B. cells
C. chromosomes
D. embryos
Answer: | D |
null | Question: Defined as a substance in foods and beverages that is essential to human survival, what term encompasses water, energy-yielding and body-building substances, and vitamins and minerals?
Options:
A. sustenance
B. nutrients
C. molecules
D. calories
Answer: | B |
null | Question: Pressure has a significant effect on the solubility of what state of matter?
Options:
A. mixtures
B. solids
C. gases
D. water
Answer: | C |
null | Question: Drilling wells into hot rocks to release hot water or steam is an example of what kind of power plant?
Options:
A. solar
B. geothermal
C. fossil fuel
D. hydroelectric
Answer: | B |
null | Question: What type of earthquake creates a tsunami?
Options:
A. collapse
B. volcanic
C. underwater
D. Tectonic
Answer: | C |
null | Question: The uranium series is a chain constituting one what, which encompass naturally occurring isotopes of the heaviest elements?
Options:
A. fuel decay family
B. nuclear decay family
C. gland decay family
D. radioactive decay family
Answer: | D |
null | Question: What is the process in which organ systems work to maintain a stable internal environment?
Options:
A. organ balance
B. homeostasis
C. ketosis
D. homogeneity
Answer: | B |
null | Question: The direct conversion of a solid to a gas, without an intervening liquid phase, is called what?
Options:
A. sublimation
B. isolation
C. amplification
D. insertion
Answer: | A |
null | Question: What substances are secreted by specialized cells usually located in endocrine glands?
Options:
A. lipids
B. hormones
C. acid
D. protein
Answer: | B |
null | Question: What types of bonds hold together positive metal ions and their valence electrons?
Options:
A. ionic bonds
B. covalent bonds
C. metallic bonds
D. toxic bonds
Answer: | C |
null | Question: Each month, starting in puberty, one egg matures and is released from where?
Options:
A. uterus
B. pollen
C. testes
D. ovary
Answer: | D |
null | Question: What does photosynthesis allow plants to generate?
Options:
A. enriched molecules
B. organic molecules
C. clorophyll
D. geometric molecules
Answer: | B |
null | Question: What force occurs whenever two surfaces come into contact?
Options:
A. vibration
B. tension
C. gravity
D. friction
Answer: | D |
null | Question: The abnormal cells cannot carry oxygen properly and can get stuck where?
Options:
A. capillaries
B. Viens
C. muscles
D. Arteries
Answer: | A |
null | Question: Bacteria and archaea that survive under extreme conditions are called?
Options:
A. audiophiles
B. rotifers
C. carotenoids
D. extremophiles
Answer: | D |
null | Question: Electrophiles have a strong tendency to react with what?
Options:
A. nucleophiles
B. resistors
C. neutrons
D. acids
Answer: | A |
null | Question: What process is at work when warm air or water rises, and cool air or water sinks?
Options:
A. evaporation
B. convection
C. radiation
D. moisture
Answer: | B |
null | Question: The pion can only be created by violating the conservation of what?
Options:
A. time-space
B. mass-energy
C. quantum physics
D. momentum
Answer: | B |
null | Question: Biodiversity hot spots are prime candidates for protection because they are prone to what species fate?
Options:
A. extinction
B. accumulation
C. mutation
D. reduction
Answer: | A |
null | Question: What type of light has shorter wavelengths than visible light and has enough energy to kill bacteria?
Options:
A. luminescence
B. ultraviolet
C. infrared
D. reflected light
Answer: | B |
null | Question: The ozone layer protects the earth from what?
Options:
A. pollution
B. uv radiation
C. light waves
D. radio waves
Answer: | B |
null | Question: There are three basic types of hormones: lipid-derived, amino acid-derived, and what?
Options:
A. acidic
B. peptide
C. manipulated
D. secreted
Answer: | B |
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