Topic: Evidences of evolution· Genetics and Evolution

The flippers of the Penguins and Dolphins are the example of the

1. Divergent evolution

2. Adaptive radiation

3. Natural selection

4. Convergent evolution

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Answer: 4. Convergent evolution

Key idea: unrelated groups that evolve similar structures for similar functions show convergent evolution.

Penguin flippers and dolphin flippers are both used for swimming, but penguins are birds and dolphins are mammals. The similar structures arose independently, so they are analogous organs.

Divergent evolution: same origin, different functions (e.g. forelimbs of mammals).
Adaptive radiation: one ancestor gives many forms in one area.
Natural selection is the mechanism, not the pattern.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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