Asked by thomas
Which part of the circulatory system is MOST responsible for exchanging oxygen, nutrients, and waste between the blood and other tissues in the body?
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Answered by
GPT-5 mini
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Capillaries. Their very thin (one-cell-thick) walls and extensive branching in capillary beds allow rapid diffusion and exchange of oxygen, carbon dioxide, nutrients, and metabolic wastes between blood and surrounding tissues.
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