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2022 BGCSE Biology Paper-1 Question-24
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Q-50
The diagram represents an alveolus and its blood supply. The process is represented by arrow W?
diffusion of carbon dioxide from an area of low concentration to an area of high concentration
diffusion of oxygen from an area of low concentration to an area of high concentration
diffusion of carbon dioxide from an area of high concentration to an area of low concentration
diffusion of oxygen from an area of high concentration to an area of low concentration
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