Question

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1️⃣Why is diffusion insufficient to meet the oxygen requirement of multicellular organism like us ??


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Answer 1

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Here is your answer

Answer:- Unlike the unicellular organism, the multicellular organism have complex body structure with specialized cells and structure to perform various necessary function of the body. Since, these cell are not in direct contact with surrounding environment so, simple diffusion cannot meet the oxygen requirements of all these cell

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Answer 2

Because of following reasons:--
Firstly,Diffusion is very slow process.
secondly,All the cells of our body are under the direct contact of environment.
that's why...