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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 :

( a ) Both are incorrect
( b ) Both are correct
( c ) 1 is correct but 2 is incorrect
( d ) 1 is incorrect but 2 is correct
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(B) is the right answer.

Phylum – Echinodermata : The most distinctive feature of echinoderms is the presence of water vascular system which helps in locomotion, capture and transport of food and respiration. An excretory system is absent
answered Jan 3, 2014 by pady_1
 

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