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Define vestigial organs. Write names of some vestigial organs in human body and write the names of those animals in whom same organs are functional.

Question 13.

Define vestigial organs. Write names of some vestigial organs in human body and write the names of those animals in whom same organs are functional.

Answer:

Underdeveloped useless organs in organisms are called as vestigial organs. Such organs useless in some organisms but these organs are useful in other organisms. These organs begin to degenerate and may take thousand years to degenerate. For examples appendix. Ear pinna muscle, tail bone (coccyx).