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Science
What is an x. o. skeleton?
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An exoskeleton is a rigid external covering that provides support and protection for the body of some invertebrates such as crabs, spiders, and centipedes.
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An exoskeleton is the external skeleton that supports and protects an animal's body, in contrast to the internal skeleton of, for example, a human. In usage, some of the larger kinds of exoskeletons are known as "shells".
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