Practice Quiz

CLEP Natural Sciences - Biological Science - Question List

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61. Which of the following elements is most common in the tissues of plants?
  1. hydrogen
  2. iron
  3. potassium
  4. sodium
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62. If a cell’s lysosomes were damaged, which of the following would most likely occur?
  1. The cell would produce more proteins than it needs.
  2. The cell would have chloroplasts that appear yellow rather than green.
  3. The cell would be less able to break down molecules in its cytoplasm.
  4. The cell would be less able to regulate the amount of fluid in its cytoplasm.
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63. A species of parasitic fly follows the sounds that male crickets make with their wings. The flies deposit their larvae in the crickets’ bodies. As the larvae develop and emerge from the crickets’ bodies, the crickets die. Researchers have discovered a genetic mutation in some crickets that changes their wing structure and makes them silent. The crickets with silent wings are found among crickets with normal wings when it is time to mate. According to evolution by natural selection, which of the following will most likely occur in the cricket population, based on the selection pressure from the flies?
  1. Male crickets with silent wings will increase in frequency.
  2. The frequency of the silent wing mutation will stay the same.
  3. Male crickets with normal wings will learn to make new sounds.
  4. A new mutation will create spikes on the crickets’ wings to keep the flies away.
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64. Which of the following is a function of the liver?
  1. removing toxic compounds from the blood
  2. secreting digestive enzymes into the stomach
  3. producing white blood cells to fight infections
  4. converting food into smaller nutrient molecules
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65. In humans, the appendix is small and is not needed for digestion. In rabbits, the appendix is well developed and is used in the digestion of plant fibers. Which of the following provides the best scientific explanation for the presence of the appendix in both humans and rabbits?
  1. Rabbits and humans live in environments with similar conditions.
  2. Rabbits and humans are both eukaryotes with similar cell structures.
  3. The appendix is evolving into a new type of organ in rabbits and humans.
  4. The appendix is inherited from a common ancestor of rabbits and humans.
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