Question

Which one of the following correctly describes the homologous structures?

• A. Organs with anatomical similarities, but performing different functions.
• B. Organs with anatomical dissimilarities, but performing same function
• C. Organs that have no function now, but had an important function in ancestors.
• D. Organs appearing only in embryonic stages and disappearing later in the adult.

Answer 1

The correct option is A Organs with anatomical similarities, but performing different functions.

Homologous organs are those that develop from the same structure along different directions due to adaptations to different needs and shows common ancestry. For example whales, bats, cheetah and human share similarities in the pattern of bone and forelimbs.

So the correct option is 'Organs with anatomical similarities, but performing different functions.'.