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we take oxygen that your body needs from the air and put it in your bloodstream. we also take carbon dioxide that is in your blood and send it out of your body. what are we? there is help box brain,lungs,stomach,kidneys,trachea,skin,veins,arteries,bones,muscles |
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Answer» Answer:LUNGS Explanation:lungs have ALVEOLI which help in diffusion of various gases from AIR to the blood and vice VERSA |
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