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3 Cards in this Set
- Front
- Back
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close circulatory system
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A circulates blood through a network of vessels that form a closed loop the blood dose not leave the blood vessels and materials diffuse across the walls of the vessels
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open circulatory system
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is common to molluscs and arthropods. Open circulatory systems (evolved in crustaceans, insects, mollusks and other invertebrates) pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.
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3 main body parts
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head thorax abdomen
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