Evolution and speciation · USMLE Step 1

Which pattern of evolution describes the evolution of similar traits independently in unrelated lineages due to similar selective pressures?

  1. Adaptive radiation
  2. Divergent evolution
  3. Convergent evolution
  4. Peripatric speciation
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Correct answer: Convergent evolution

Convergent evolution occurs when unrelated species evolve similar adaptations independently because they face similar environmental pressures, even though they do not share a recent common ancestor.

Difficulty: Medium Question 16 of 20

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