9.6 Phylum Mollusca
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marine, although some liev in freshwater or on land
2 distinguishing characteristics
mantle- secretes a protective shell around the animals soft unsegmented body. muscular sac covers the body behind the arms and head.
muscular foot used for locomotion
squids, clams, mussels, oysters, snails, slugs,
extends from the collar towards the head.
- female has 2 large nidamental glands that produce coverings for the egg
- ovary- where eggs are produced
- testis covered by the cecum
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