when we take different gasses. in these gasses alot of gasses are harmfull. where oxygene is filltered in the body or out side the body?
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During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli
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oxygen is filtered in the body
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