Features of unio(mollusca)
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HABIT AND HABITAT: Unio is found at bottom in ponds,lakes,streams and rivers burried in sand or mud. 1) Body is soft,bilaterally symmetrical and flattened enclosed in a calcareous shell. 2) Shell consists of two equal pieces or valves covering right and left side of body.☺☺☺☺☺☺☺☺✌✌✌
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