Body plan
Mantle: thin layer of tissue covering most of the body - like a cloak Shell: made by glands in the mantle that secrete calcium carbonate - many mollusks no longer have one Visceral Mass: contains the internal organs - soft part Circulation
Movement
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Nutrition
Response
reproduction
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Three classes:
Gastropods
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Bivalves
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Cephalopods
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ecology
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adaptations
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