which is the excretory organ in phylum mollusca ?
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Molluscs also have a well-developed excretory system, using tubular nephridia organized as kidneys, that collect liquid wastes from the coelom and dump them in the mantle cavity, where they are pumped out of the shell. Sexes are separate (dioecious), except for bivalves and some snails, which are hermaphroditic.
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tubular nephridia organized as kidneys that collect waste material
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