Which one of the following correctly describes the homologous structures?

Options

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

Answer

A

Explanation

Homologous organs are those organs that have the same fundamental structures but are different in functions. These organs follow the same basic plan of oraganisation during their development. But in adult condition, these organs are modified to perform different functions as a result of divergent evolution. Homology indicates common ancestry.