Answers

2016-04-02T18:56:05+05:30
1)feather star
2)sea cucumber
3)sea Urchin
4)common starfish
b.they belong to Echinodermata
c.Echinoderms have many tube feet on each of their "arms" and with the combination of the water vascular system, it makes up the movement of echinoderms.
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