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FinnZ [79.3K]
3 years ago
13

Why is circulation in humans called closed double circulation?

Biology
1 answer:
Hatshy [7]3 years ago
7 0
The majority of mammals (including humans<span>) utilize a </span>double circulatory<span> system. This means we have two loops in our body in which blood circulates. One is oxygenated, meaning oxygen rich, and the other is deoxygenated, which means it has little to no oxygen, but a lot of carbon dioxide.</span>
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