Multiple choice

The concept of gradual divergence is supported by observations of what in related populations:

  1. Discontinuous variation over time

  2. Discontinuous variation across their geographical range

  3. Continuous variation over time

  4. Continuous variation across their geographical range
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Continuous variation across a geographical range (such as in clines) supports gradual divergence. It demonstrates that populations can slowly adapt to local conditions and gradually diverge into distinct species.

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