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All of these work together to make up the circulatory system except:

the lungs.
the heart.
the liver.
the blood vessels.

2 Answers

5 votes
I think it was the heart that didn’t make it
User Hossein Mousavi
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3 votes
It’s the liver because oxygen circulates throughout you’re body and the heart pumps blood in ur blood which goes along with blood vessels
User AdamF
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