Question

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

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

Answer 1

The correct option is B they share a common ancestor

Homologous organs:

Homologous organs have a similar structure but are different in functions. Homologous organs suggest their connection to a common ancestor. For example the forelimbs of whale are used for swimming , bats use them for flying, cheetah for running and man for various purposes.



Final answer

b.they share a common ancestor