The madreporite helps the sea star
a) locate food.
b) digest food and distribute it to the arms.
c) absorb water to regulate its vascular system.
d) keep its surface clean of algae and barnacles and debris.
e) reproduce.
Ans: c) absorb water to regulate its vascular system.
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Bob is recovering from a brain injury. He is unable to speak, but he clearly understands both the
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