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Which among the following are examples of homologous organs?

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Which among the following are examples of homologous organs?

(a) Wings of butterfly and bird

(b) Flippers of penguins and dolphins

(c) Eye of octopus and mammals

(d) Forelimbs of whales, bats, cheetah and humans

I had been asked this question by my college director while I was bunking the class.

I'm obligated to ask this question of Evidences for Evolution in division Evolution of Biology – Class 12

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Correct answer is (d) Forelimbs of whales, bats, cheetah and humans

For explanation: Forelimbs of whales, bats, cheetah and humans are homologous organs. They all have similar structure but perform different functions. The remaining options are examples of analogous organs.

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