What is body symmetry of echinoderms ?
Radial symmetry (in adults, since their larvae are bilaterally symmetrical).
Pick the incorrect statement regarding echinoderms :
I. Body is covered with spicules made of bio-mineral matrix.
II. Adults show pentaradial Symmetry while larvae show bilateral symmetry.
III. Water vascular system is well developed and aids in locomotion and feeding.
IV. Classification of echinoderms is based on merosity of organs.