Download - Mollusks
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Mollusks27-4
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Free-swimming larval stage of an aquatic mollusk.
Trochophore
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Muscular part of a mollusk.
Foot
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Thin layer of tissue that covers most of the mollusk’s body.
Mantle
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Structure in mollusks made by glands in the mantle that secrete calcium carbonate.
Shell
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Area beneath the mantle of a mollusk that contains the internal organs.
Visceral Mass
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Tongue-shaped structure used for feeding by snails and slugs.
Radula
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Tubelike structure through which water enters and leaves a mollusks body.
Siphon
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System in which blood is not always contained within a network of blood vessels.
Open Circulatory System