Question

why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like human ​

Answer 1

Answer:

As all are cells are not in contact with the surroundings

Explanation:

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Answer 2

Answer:

Diffusion is unable to meet the oxygen requirements of multi-cellular organisms such as humans because diffusion is one of the slow processes. That is a lot of time is required for oxygen to circulate to all the cells of the body. ... Therefore, through diffusion, it becomes difficult for oxygen to reach all the cells.

Explanation:

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