Bio circulatory system help?
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What advantage does a closed circulatory system have over an open circulatory system in its function with the excretory system?
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Answer:
in open circulatory system insects have to move their muscle to get the solution carrying the oxygen to the cells and muscles. Closed circulatory systems have a heart that automatically pumps blood with oxygen to cells in muscles, so organisms with closed circulatory systems don't have to move constantly.
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