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Question
How does oxygen enter the blood from the lungs? [1 MARK]
How does oxygen enter the blood from the lungs? [1 MARK]
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Solution
Explanation: 1 Mark
Oxygen enters the blood through the large surface area of alveoli in the lungs by the process of diffusion.
Explanation: 1 Mark
Oxygen enters the blood through the large surface area of alveoli in the lungs by the process of diffusion.
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