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Answer

the human appendix, the pelvic bone of a snake, and the wings of flightless birds.

Explanation:

The human appendix is an example of vestigial features.

Why is human appendix considered a vestigial structure?

  • The human appendix can be called a vestigial organ because it has been proven that removing it after childhood causes no harm.
  • However, in humans, the appendix has evolved to the point where it is strategically located at the intersection of the midgut and hindgut.
  • Appendixes were employed for digestion by prehistoric humans, who were mostly herbivores.
  • However, as humans progressed, they began to consume more easily digestible foods, and the appendix finally lost its ability to function.

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