Question

Forelimbs of whale, bat, cheetah and human are example of:

• A. Analogous organ
• B. Homologous organs
• C. Homoplastic organ
• D. Vestigial organ

Answer 1

The correct option is B Homologous organs

Whales, bats, cheetah and human share similarities in the pattern of bones of forelimbs. Though these forelimbs perform different functions in these animals, they have similar anatomical structure – all of them have humerus, radius, ulna, carpals, metacarpals and phalanges in their forelimbs. Hence, in these animals, the same structure developed along different directions due to adaptions to different needs. This is divergent evolution and these structures are homologous organs.