1) What does echinoderm mean? a) pointy rays b) spiny skin c) star-shaped d) radial symmetry e) outer skin f) many legged 2) Pick the FALSE statement about echinoderms a) marine b) bottom dwellers c) slow-moving or sessile d) deuterostomes e) primary radial symmetry f) symmetry of 5 3) Which of the following statements is true? a) Their mouth is found on the dorsal surface b) They get nutrition through the water vascular system c) They have an open circulatory system d) They move with tube feet e) They have a ganglionic brain f) They have internal fertilization 4) Which is NOT true of the water vascular system? a) used for movement b) used for gas exchange c) used for waste removal d) contains ring and radial canals e) water enters through the tube feet f) madreporite is found on the dorsal surface 5) Which pairing is true? a) Sea stars - filter feeders b) Sea urchins - use spines for hunting c) Sea cucumbers - can photosynthesize d) Sea lilies - predators e) Sand dollars - detritus-eaters f) Sea stars - predators

Echinoderms

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