Practice Quiz

CLEP Biology Practice Exam - Question List

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116. Which of the following is a correct order in which air moves through the human respiratory system when a person inhales?
  1. nose, larynx, trachea, pharynx, bronchi, lungs
  2. nose, pharynx, larynx, trachea, bronchi, lungs
  3. pharynx, bronchi, nose, larynx, trachea, lungs
  4. pharynx, nose, trachea, bronchi, larynx, lungs
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117. Which of the following environmental conditions makes water less available to plants for growth?
  1. Soil in the area is organically rich.
  2. Ground cover is effective at slowing erosion.
  3. High humidity lowers the rates of transpiration.
  4. Cold temperatures freeze the water in and on the ground.
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118. Some bacteria live in hot springs. Their cells contain enzymes that function best at temperatures of 70°C or higher.At a temperature of 50°C, how will the enzymes in these bacterial cells most likely be affected?
  1. The enzymes will be destroyed by lysosomes.
  2. The enzymes will lose their bond structure and fall apart.
  3. The enzymes will require less energy to function than
    at 70°C.
  4. The enzymes will not increase the rate of reactions as much as they would at 70°C.
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119. On the Galápagos Islands, finches adapted over time to different food sources through changes in their beak structure. Which of the following most likely resulted from the finches’ beak structure adaptations?
  1. a decreased predation on finches
  2. an increased species diversity of finches
  3. an increased competition among finches
  4. a decreased reproductive rate in finches
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120. In sexual reproduction, what is the source of the genetic material in a zygote?
  1. an egg cell only
  2. a sperm cell only
  3. an egg cell and a sperm cell
  4. an egg cell and a polar body
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