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1
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A lineages of mollusks including the squid, octopuses, and nautiluses. Distinguished by large brains, excellent vision, tentacles, and a reduced or absent shell.
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3
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Also called chitons. They have a shell with overlapping plates. Mostly stay on rocks and eat algae and plant matter.
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4
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Consists of spaces between cells within the animal tissues. This circulatory system extends into a large muscular foot.
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5
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Believed to be extinct but were rediscovered in 1952. Little known about this creature, which live in deep water.
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9
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Clams, oysters, mussels and scallops. Marine and freshwater. Characterized by shells (valves) closing entire body (two valves.
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10
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Snails, nudibranchs, abalones, limpets, etc. Includes over half of species found in Mollusk phylum.
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11
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Flat gills found in a pocket of the mantle tissue. It absorbs oxygen from water that enters the cavity.
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12
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In Latin, it means 'not bearing a shell'; worm-like, no foot. small wormlike animals that don’t have shells. Live deep underwater.
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13
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An area of tissue covering the internal organs. In most mollusks, it secretes a hard calcium-based shell that protects the animal from predators.
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1
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Consists of two openings- a mouth and an anus. Animals with this can eat continuously and this allows them to be more active.
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2
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Strong muscular portion of a mollusk used for movement.
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6
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Also called tusk shells. Live at bottom of water bodies where feed on detritus.
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7
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Types of mollusks called bivalves. These have many eyes and can swim.
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8
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Filelike feeding organ (tongue). Mollusks eat by scraping the radula over their food and the hard teeth of the radula pick up tiny particles that the animal swallows.
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