define double circulation
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The majority of mammals (including humans) utilize a double circulatory system. This means we have two loops in our body in which blood circulates. One is oxygenated, meaningoxygen rich, and the other is deoxygenated, which means it has little to no oxygen, but a lot of carbon dioxide.
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Step-by-step explanation:
the process by which blood flows 2 times through heart ; one time from the body parts and the other time from the lungs
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