Answer:
There is no mixing of oxygen-rich and oxygen-poor blood.
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The right atrium and right ventricle of the human heart pump oxygen-poor blood to the lungs and the left atrium receives oxygen-rich blood. They never mix.
Answer:
False
Explanation:
Heat is transferred not lost
Answer:
It is geographical location.
Explanation:
It makes sense for Biology.
Ummmmmmmmmm..... chewing?
