Multiple choice

Which of the following is a vestigial structure of a human?

  1. appendix

  2. spine

  3. thumbs

  4. intestines
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A vestigial structure is an anatomical feature that has lost most or all of its original function through evolution. The human appendix is a classic example of a vestigial structure.

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