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3 Cards in this Set
- Front
- Back
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closed circulatory system
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a heart pumps blood through a network of blood vessels that form a closed loop
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open circulatory system
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a simple heart pumps blood through blood vessels that empty into sinues or spaces in the animals body
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3 main body parts of an arthopod
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jointed limbs, an exoskeleton,and a well devloped nervous system
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