MARKING PEOPLE AS BRAINLIST Where is the oxygen picked up and the carbon dioxide unloaded in the body?
A:Veins
B:Capillaries
C:Lungs
D:Capiliaries

Once the oxygen diffuses across the alveoli, it enters the bloodstream and is transported to the tissues where it is unloaded, and carbon dioxide diffuses out of the blood and into the alveoli to be expelled from the body

Explanation:

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mark brainliest

answer; hepatitis a& b can be passed through breast milk; (true);