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10 terms

Mollusks

For upcoming scince test
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Mollusk
Invertebrates with soft, unsegmented bodies that are often protected by a hard outer shell
Open circulatory system
The blood is not always inside the blood vessels
Gill
Organs that remove oxygen from the water
Gastropod
The largest group of mollusks
Herbivore
Animals that eat only plants
Carnivore
Animals that only eat other animals
Radula
A flexible ribbon of tiny teeth, to obtain food
Biovalve
Mollusks that have two shells held together by hinges and strong muscles
Omnivore
Animals that eat both plants and animals
Cephalopod
An ocean-dwelling mollusk whose foot is adapted to form tentacles around its mouth