Question 2 and 3 plz!! I can’t seem to find the help I need !

Biology

1 answer:

Mrrafil [7]3 years ago

7 0

Carbon Dioxide (or CO2) is produced by the lungs I think because when you inhale, you breathe in oxygen, then you exhale the carbon dioxide in the lungs. That's actually 3 and 4. As for number 2, I want to say either the alvioli or however that's spelled but technically, the entire body uses oxygen so I'm not sure.

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