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Which is not a vestigial organ in man? (a) third molar (b) nails (c) segmental muscles...

Which is not a vestigial organ in man?

(a) third molar

(b) nails

(c) segmental muscles of abdomen

(d) coccyx.

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Answer #1

The correct answer is option B that is nails as nails are proportionately the same size as our wild counterparts. The nail size is not reduced structure. If the nails were vestigial organs they would have been of much reduced size compared to the other primates.

Option A is vestigial organ that is third molar are wisdom tooth that was used by human ancestors to grind plant tissue.

Option C is also a vestigial organs in humans.

Option D is a tailbone remnant of the tail that is also a vestigial organs.

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