Concept explainers
To write:
Why humans have an appendix if it has no known useful function.
Introduction:
The
Explanation of Solution
The appendix is a tiny pocket connected to the large intestine where it meets the small intestine which does not directly help digestion. Biologists agree that the human appendix is a vestigial organ left behind by a plant-eating ancestor. It forms a thin, closed tube which produces mucus and includes lymphatic tissue that is part of the immune system. It also produces useful bacteria.
Thus, the appendix is the vestigial organ left by the plant eating ancestor. It is a small, sac-like appendage.
Chapter 35 Solutions
Biology Illinois Edition (Glencoe Science)
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