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9 Cards in this Set
- Front
- Back
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ECTOPROCTS
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a sessile, colonial lophorate commonly called a bryozoan
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EXOSKELETON
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a hard encasement on the surface fo an animal, such as the shell of a mollusc or the cuticle of an arthropod, that provides protection and points of attachment for muscles
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BRACHIOPOD
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a marine lophophorate with a shell divided into dorsal and ventral halves; brachiopods are also called lamp shells
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FOOT
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one of a the three main parts of a mollusc; a muscular structure usually used for movement
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VISCERAL MASS
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one of the three main parts of a mollusc; the part containing most of the internal organs
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MANTLE
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one of the three main parts of a mollusc; a fold of tissue that drapes over the mollusc's visceral mass and may secrete a hard shell
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MANTLE CAVITY
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a water-filled chamber that houses the gills, anus and excretory pores of a mollusc
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RADULA
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a strap-like rasping organ used by many molluscs during feeding
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AMMONITE
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a member of a group of shelled cephalopods that were important marine predators for hundreds of millions of years until their extinction at the end of the Cretaceous period
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