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An earthworm receives support and shape from its fluid-filled cavity. It has _____. (a)an endoskeleton (b)an exoskeleton (c)a hydroskeleton (d)no skeleton
(c)a hydroskeleton. A hydroskeleton, also called hydrostatic skeleton, occurs in many soft-bodied animals, such as earthworms.
Expert answered|migzptz|Points 5791|
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Asked 4/23/2012 1:24:54 PM
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