The bones of forelimbs of whale, bat, cheetah and man are similar in structure because

Options

A. one organism has given rise to another
B. they share a common ancestor
C. they perfrom the same function
D. the have biochemical similarities.

Answer

B

Explanation

The bones of forelimbs of whae, bat, cheetah and man are similar in structure, because they are homolgous organs. The organs which have the same fundamental structure but are different in fucntions are called homologous organs. These organs follow the same basic plan of organisation organs are modified to perform different functions as an adaptationto different environments. The homologous stuctrues are a result of divergent evolution. Homology indicates common ancestry.