ANATOMY

Detailed explanation-1: -B. Homologous organs – Forelimbs of man, cat, bat and whale are homologous organs.

Detailed explanation-2: -Explain why the forelimbs of a cat, a bat, and a whale would be homologous structures. Because they have similar bone structure. What is an analogous structure? Structures that have the same/similar function.

Detailed explanation-3: -An example of homologous structures are the limbs of humans, cats, whales, and bats. Regardless of whether it is an arm, leg, flipper or wing, these structures are built upon the same bone structure. Homologies are the result of divergent evolution.

Detailed explanation-4: -Hint: Homologous structure of the organs or any other skeletal elements are the organs which have basic structural design and origin, but they have different in function, similarly the forelimbs of whales, bats and humans and cheetah are considered as homologous organs.

Detailed explanation-5: -Cats and whales share the same general layout and number of bones in their forelimbs, but their size and arrangement is very different. This is how we get the difference in whale flippers and cat legs. The forelimbs of these two animals are homologous structures. B is the correct answer.