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Praxis II: Biology Content Knowledge Exam Prep

Category - Biology

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As a means to spot prey, both snow leopards and owls have developed extraordinary night vision. This is an example of:
  1. Divergent evolution
  2. Speciation
  3. Coevolution
  4. Convergent evolution
  5. Biological magnification
Explanation
Answer: D, Convergent evolution. Both species have developed a similar characteristic for a similar purpose.

Key Takeaway: Convergent evolution occurs when two distinct species become similar in some way as a result of similar pressures. In the case of both the snow leopard and the owl, the pressure is the need for food. As nocturnal animals, both animals have evolved a distinct selection advantage which allows them to hunt at night and conserve energy that would be used during sunlight.
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