Multiple choice

Find out 'vestigial organ' among these.

  1. Nictitating membrane in the eye

  2. Eye lid

  3. Eye brow

  4. Eye lens
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A Correct answer
Explanation

The nictitating membrane (third eyelid) is a vestigial organ in humans - a non-functional remnant of a structure that was fully functional in many other vertebrates. Vestigial organs are evolutionary leftovers that served important functions in ancestors but have reduced or lost their original purpose due to changes in lifestyle or environment.

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