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adaptations of exchange surfaces (mainly for gas exchange)

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Exchange surfaces in animals and plants New Spec - Ignore references to Unit 1 and 2, all is now in unit 3 for the new spec

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GCSE Biology Revision: Exchange surfaces

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GCSE Biology Revision: Exchange surfaces In this video, we look at how surfaces are adapted for efficient diffusion and active transport. We look at the villi in the small intestine and at alveoli in the lungs.