Question

Vestigial organs such as the appendix exist because

• A. they had an important function during development which is not needed in the adult
• B. they have a redundant role to play if an organ with similar function fails
• C. nature cannot get rid of structures that have already formed
• D. they were inherited from an evolutionary ancestor in which they were functional

Answer 1

Answer: (D)

Vestigial organs are those organs which are no longer in use. They were used to play an important role in our ancestors, but as and when we developed and evolved, some of these organs lost their functionality but managed to stay in our body. Appendix, coccyx, external ears, etc. are some examples of vestigial organs in human body.