how are alveoli and small intestine designed to maximise the exchange of gases or nutrients.
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alveoli are ballon like structure which are inriched with capillaries to provide a large surface area for exchange of gases
and small intestine have finger like projections which also increases the surface area hence leading to better absorption
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Alveloi are balloon shaped structures which increases the surface area for the exchange of gasesand are richly supplied with blood vessels to take the oxygen to different cells.
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