The Most Active of All Echinoderms are The

Question

The most active of all echinoderms are the
A)sea urchins.
B)sea stars.
C)sea cucumbers.
D)brittle stars.
E)crinoids.

Accepted Answer

Brittle stars are the most active of all echinoderms, using their arms to move rapidly over the ocean floor in search of food. Sea urchins and sea cucumbers are more sedentary, while sea stars and crinoids are typically slow-moving or sessile organisms.