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Describe how oxyen enters the lungs with the help of block diagarm |
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Answer» A. Gaseous exchange takes place WITHIN the lungs by diffusion from the alveoli to blood capillaries and vice versa. ... The bright red, OXYGEN rich blood is RETURNED to the HEART and pumped out to all parts of the body.Explanation:i need help. plz MARK me as brainliest god will give you long life and place in heaven if you mark me as brainliest. |
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