Question

Regarding Phylum – Echinodermata : 1. The most distinctive feature of echinoderms is the presence of water vascular system. 2. An excretory system is absent Regarding 1 and 2 :

Answer 1

3) locomotary organ= Tube feet
4) Skin = Dermalbrachia
5) Development = Indirect
larvae > Pippinaria
> Auricularia
> Echinopleura
> Brancholaria
> Doliolaria
6) Aristotle's lantern = mouth part of echinodermata