The Water Vascular System of Echinoderms

Multiple Choice

The water vascular system of echinoderms

A) functions as a circulatory system that distributes nutrients to body cells.
B) functions in locomotion, feeding, and gas exchange.
C) is bilateral in organization, even though the adult animal is not bilaterally symmetrical.
D) moves water through the animal's body during suspension feeding.
E) is analogous to the gastrovascular cavity of flatworms.