The answer is B, Carbon Dioxide is carried through the blood vessels back to the lungs.
Have him drink allot of water and take Advil and eat healthier
It means that you have a cold. Keep your fluid intake up. Hot water bottle. Hot honey and lemon as this has anti bacterial properties and will help get rid of the cold. Good luck :)
The heathly adult pumps about 2 galoons every 60 secods.
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