31. Invertebrates
Ecdysozoans
Problem 2b
Textbook Question
Textbook QuestionWhat is the function of the arthropod exoskeleton? a. The presence of an exoskeleton has given arthropods a good fossil record, because hard parts fossilize more readily than do soft tissues. b. It has no well-established function. (Trilobites had an exoskeleton, and they went extinct.) c. It provides protection and functions in locomotion. d. It makes growth by molting possible.
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