Practice Quiz

CLEP Natural Sciences - Biological Science - Question List

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6. Lemurs’ bodies are adapted to efficiently store energy for times when food is scarce. This adaptation may help to explain how lemur ancestors survived the trip across the Mozambique Channel from mainland Africa to Madagascar. Which of the following types of molecules are primarily used for long-term energy storage in the lemur?
  1. lipids
  2. monosaccharides
  3. nucleic acids
  4. proteins
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7. Lemur body types can vary widely. In addition to fossils and comparative anatomy, which of the following types of evidence can scientists reliably use to study the evolution of the variety of lemur body types?
  1. lifespan
  2. population sizes
  3. DNA sequences
  4. male-to-female ratio
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8. There are at least 88 species of lemurs in existence today. Which of the following conditions most likely existed and made it possible for Madagascar’s original lemur ancestors to evolve into many species on the island?
  1. presence of a deadly virus that infected only lemurs
  2. complete isolation from other small mammal species
  3. new niches to adapt to in the absence of a large number of competitors
  4. climatic conditions that were very different from those on mainland Africa
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9. Which of the following lemurs would be classified as a secondary consumer?
  1. a mouse lemur eating insects
  2. a Verreaux’s sifaka eating leaves
  3. a ring-tailed lemur eating fruits
  4. a red-bellied lemur eating flowers
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10. A builder is proposing a new housing development in an area of western Massachusetts. Construction of the housing development will destroy the wetland habitat in the area. Which of the following would be the most likely consequence of the wetland’s destruction?
  1. The wetland plant species would disperse to adjacent meadow habitats.
  2. The populations of wetland animals would be unable to survive in that area.
  3. The wetland animal species would survive by interbreeding with non-wetland species.
  4. The populations of wetland plants would evolve to disperse seeds by wind rather than water.
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