Forelimbs of whales, bats, cheetahs and humans share the same bone pattern (humerus, radius, ulna, carpals, metacarpals, phalanges). Such structures are best described as:
A{'text': 'Analogous organs produced by convergent evolution', 'label': 'A'}
B{'text': 'Vestigial organs reduced by disuse over generations', 'label': 'B'}
C{'text': 'Homologous organs produced by divergent evolution', 'label': 'C'}
D{'text': 'Atavistic organs reappearing after long suppression', 'label': 'D'}
Answer & Solution
Correct answer: C. {'text': 'Homologous organs produced by divergent evolution', 'label': 'C'}
These forelimbs perform different functions but share the same anatomical plan, indicating common ancestry. The same structure has developed along different directions due to different needs, which is divergent evolution. Such structures are called homologous.
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