Question

special features of the phylum echinoderms??
A water canal system b water vascular system c ambulacral system d both 1 and 2

Answer 1

Hey..mate here is yur ans...
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The special feature of phylum echinoderms is water vascular system respiration of members of this phylum also occurs through water vascular system
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Answer 2

The special features all the Phylum echinoderms is water vascular system.

Echinodermata :

They are having radially symmetry.

They are triploblastic.

They are having coelom.

Body surface is covered with projections and spines.

There are no head and tail or right and left sides.

They are sea animals.

They poses power of regeneration.

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