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Question

Class of mollusca in which head, tentacles and eyes are not differentiable is

A
Gastropoda
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B
Pelecypoda
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C
Cephalopoda
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D
Both A and B
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Solution

The correct option is B Pelecypoda
Class of mollusca in which head, tentacles and eyes are not differentiable is Pelecypoda. It does not have distinct head. Tentacles, radula are absent. It has two shells or bivalves. It has bilateral symmetry and is laterally compressed. It includes oysters, clams, scallops.
Thus, the correct answer is option B.

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