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Evolution

Question
CBSEENBI12003111
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Which of the following is not a vestigial structure in Homo sapiens ?

  • Third molar

  • Epiglottis

  • Plica semilunaris

  • Pyrimidalis muscle

Solution

B.

Epiglottis

Vestigial organs are degenerate, non- functional and rudimentary organs correspond to fully developed and functional organs of related organism. Wisdom teeth (third molar) , Plica semilunaris and Pyrimidalis muscles are vestigial organs.

Epiglottis is not a vestigial organ in man. It is the structure that prevents the entry of food into respiratory tract during swallowing in man.

Some More Questions From Evolution Chapter

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