Practice Quiz

CLEP Biology Practice Exam - Question List

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1. In 2006, scientists discovered fossilized skeletons of an animal with several interesting features. Fossil evidence indicated that the animal not only had scales, fins, and gills, but also had lungs, a full set of ribs, and limb bones arranged to support the animal’s weight. The illustration below shows what the animal, called Tiktaalik, probably looked like based on the fossil evidence.Which of the following statements best explains why the Tiktaalik fossils are an important piece of evidence for evolution?
  1. They include skeletons of both males and females.
  2. They are complete skeletons of a carnivorous animal.
  3. They allow scientists to estimate the animal’s lifespan.
  4. They show a transitional form between fish and land-dwelling vertebrates.
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2. Which of the following matches a cell organelle with its function?
  1. chloroplast-movement
  2. nucleus-cell regulation
  3. vacuole-energy production
  4. mitochondrion-photosynthesis
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3. Joints are most important for which of the following functions of the human skeletal system?
  1. protection
  2. movement
  3. storage of minerals
  4. blood cell formation
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4. Until recently, the myrtle warbler and the Audubon’s warbler were thought to be separate species of birds because the males have very different appearances. Which of the following observations most likely led to the reclassification of these warblers as one species?
  1. The myrtle warbler and the Audubon’s warbler have the
    same diet.
  2. The myrtle warbler and the Audubon’s warbler lay the same
    number of eggs.
  3. The myrtle warbler and the Audubon’s warbler have overlapping geographical ranges.
  4. The myrtle warbler and the Audubon’s warbler interbreed and
    produce fertile offspring.
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5. In the deserts of the southwestern United States, rock formations made from lava flows are found scattered across the sand. The rock pocket mouse, which has dark fur, lives on the black lava rocks. The Apache pocket mouse, which has light fur, lives on the tan sand.Which of the following statements best explains how these two types of mice could have evolved from a common ancestor?
  1. Individual mice changed their fur color to escape their predators.
  2. Natural selection favored different fur colors in the different habitats.
  3. The emigration of mice changed the gene pools in the original population.
  4. The original population of mice spread out geographically to relieve overcrowding.
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