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5. HOTS question
Why do you think capillaries have very thin walls?
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The capillaries are thin walled, because they help in the exchange of gases and diffusion of materials into the cells. This diffusion is possible due to the thinness of its walls.
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Explanation:
The capillaries are thin walled, because they help in the exchange of gases and diffusion of materials into the cells. This diffusion is possible due to the thinness of its walls.
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