Line 1: *Cell division is more complex in eukaryotes than prokaryotes. Mitosis is cell division. Mitosis is more complex in eukaryotes than prokaryotes.*
*(D)*
Line 2: *_ is more complex in eukaryotes than prokaryotes.
Options:
- (A) voltage
- (B) disease
- (C) Epidermis
- (D) Mitosis
- (E) organ
- (F) distance
- (G) recycling
- (H) resistance*
Logic of a solution: *Male dogs use pheromones in urine to mark their territory. Males produce 'pheromones' to attract females. Male dogs use something that attracts females in urine to mark their territory.*
*(B)*
The original question: *What does the substance that male dogs have in urine to mark their territory do?
Options:
- (A) sweating
- (B) attract females
- (C) Release energy
- (D) repels females
- (E) attract enemies
- (F) attract males
- (G) adding heat
- (H) dangerous*
Line 1: *Air pollution harms the respiratory and circulatory systems. Sulfur dioxide can irritate the respiratory system and damage the heart and circulatory system. Air pollution damages the heart.*
*(C)*
Line 2: *What organ is harmed by air pollution?
Options:
- (A) piano
- (B) church organ
- (C) heart
- (D) harp
- (E) bushes
- (F) animals
- (G) eardrum
- (H) lungs*
Logic of a solution: *Viruses are so small that they can be seen only with an electron microscope. On the surface of each microscopic color filter is also a microscopic lens. Viruses are so small that they can be seen only with an electron lens.*
*(C)*
The original question: *Viruses are so small that to see them a scientist would have to use what kind of lens?
Options:
- (A) Refract it
- (B) refraction of light
- (C) an electron lens
- (D) an image
- (E) rays or beams
- (F) bending light rays
- (G) A computer
- (H) flashlights*
Line 1: *Thyroid hormones increase the rate of metabolism in cells throughout the body. Thyroxine, a thyroid hormone, is an aryl iodide. Thyroxine increase the rate of metabolism in cells throughout the body.*
*(A)*
Line 2: *What increases the rate of metabolism in cells throughout the body?
Options:
- (A) Thyroxine
- (B) Smoking
- (C) fever
- (D) bioaerosols
- (E) acetic acid
- (F) sweating
- (G) Power plants
- (H) heat produced*
Line 1: *Annelids are worms such as the familiar earthworm. An earthworm has five hearts. An animal that has five hearts is an annelid.*
*(B)*
Line 2:
*One example of an annelid has how many hearts?
Options:
- (A) three
- (B) Five
- (C) white
- (D) warm
- (E) four
- (F) strong
- (G) long
- (H) small*