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| Phylum Mollusca |
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Aquatic in habitat but some land forms are also seen |
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Body is soft and divided into three regions (head, dorsal visceral mass and ventral foot) |
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Body enclosed in a hard calcareous shell |
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Breathe through gills, land molluscs have lungs |
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Sexes are separate |
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| Example: Chiton, Pila (snail), unio (fresh water mussel), octopus |
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