Question
What are Vestigial Organs? How they are different from atavistic organs?
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Answer
The organs of the body of the organisms which are non-functional but were functional in their early ancestors are called as the vestigial organs. Coccyx, third eyelid, vermiform appendix in man. Atavistic organs are those vestigial organs which have become functional e.g. Birth of human baby with a small tail, development of power of moving pinna in same persons and presence of additional mammae in some human beings.
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