"Bipinnaria" describes the
A)larval form of many echinoderms.
B)central two-branched reproductive structures of sea stars.
C)hydraulic system that controls the tube feet of sea urchins and sea stars.
D)ability of these animals to grow into either males or females.
E)underlying bilateral symmetry of an adult although it appears to be pentaradial.

Question

Quizplus · Accepted Answer

Bipinnaria is the larval form of many echinoderms, such as sea stars and sea urchins. The larvae have a bilateral symmetry and develop into the characteristic pentaradial symmetry of adult echinoderms as they mature.

"Bipinnaria" Describes the