water regulation in phylum mollusca
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Superphylum: Lophotrochozoa ... Mollusks are divided into 3 groups: bivalves or two-shelled mollusks, gastropods or stomach-footed ... In bivalves, the water enters the mantle through an incurrent siphon, passes over the gills, exchanges gas
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Superphylum: Lophotrochozoa ... Mollusks are divided into 3 groups: bivalves or two-shelled mollusks, gastropods or stomach-footed ... In bivalves, the water enters the mantle through an incurrent siphon, passes over the gills, exchanges gas
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