Question

a.)Write the common names of the following :
1. Antedon
2. Holothuria
3. Echinus
4. Asterias

b.) Name the phylum to which they belong.
c.) Name the system they use for moving around.

Answer 1

a)
1. Sea lily
2.Sea cucumber
3. Sea urchin
4.Star fish

b) Echinodermata

c) Water vascular system

Answer 2

A. The common names of the following are :

a). Sea lily

b). Sea cucumber

c). Sea urchin

d). Star fish

B. They belong to phylum Echinodermata.

C. They move by Water Vascular System.