3 years ago

Please, do not guess the answer :( Thanks

Biology

2 answers:

aalyn [17]3 years ago

4 0

It would be a

hope this helps

lilavasa [31]3 years ago

3 0

I believe the answer is A because this is the two loop system because the air you take in from your lungs automatically is polluted. In the two loop system, the carbon dioxide is taken out out of the oxygen and is pumped back to the heart to be taken out of the body. The oxygenated blood is pumped into places it is needed.

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