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Why is the human cardiovascular system considered closed?
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Why is the human cardiovascular system considered closed?
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Apr 18, 2019
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Why is the human cardiovascular system considered closed?
Biology
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Shantelle
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Answer:
There are no holes for blood to enter or leave the system
Darkdante
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Apr 20, 2019
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The blood circulates, so blood is reused constantly. There's no break in the circle, so it is a closed system
Oasia
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Apr 24, 2019
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