Vestigial organs are parts of an organism that are reduced in size and often functionless, representing a vestige of an organ that was fully developed and functional in some ancestor. These organs have lost their original function through evolution.

For example, the human appendix is a vestigial organ. In our herbivorous ancestors, the appendix was a large cecum, used in the digestion of plant matter. As human diets changed, the cecum became less necessary and eventually evolved into the much smaller organ we call the appendix. Today, the appendix has no known essential function in humans.

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Vestigial organs are parts of an organism that are reduced in size and often functionless, representing a vestige of an organ that was fully developed and functional in some ancestor. These organs have lost their original function through evolution.

For example, the human appendix is a vestigial organ. In our herbivorous ancestors, the appendix was a large cecum, used in the digestion of plant matter. As human diets changed, the cecum became less necessary and eventually evolved into the much smaller organ we call the appendix. Today, the appendix has no known essential function in humans.

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Vestigial organs are parts of an organism that are reduced in size and often functionless, representing a vestige of an organ that was fully developed and functional in some ancestor. These organs have lost their original function through evolution.

For example, the human appendix is a vestigial organ. In our herbivorous ancestors, the appendix was a large cecum, used in the digestion of plant matter. As human diets changed, the cecum became less necessary and eventually evolved into the much smaller organ we call the appendix. Today, the appendix has no known essential function in humans.

What are vestigial organs? Give one example.

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