First slide

Classification of Animals

Question

Alimentary canal of starfish is

Moderate

A

Complete, with dorsal mouth and ventral anus
B

Complete, with ventral mouth and dorsal anus
C

Incomplete, with mouth but without anus
D

Incomplete, without mouth and anus

Solution

In eleutherozoan echinoderms, digestive system is complete with mouth on the lower (ventral) side and anus on the upper (dorsal) side.

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