Question

why is diffusion insufficient to meet the energy requirements of multicellular organisms like humans ?​

Answer 1

Explanation:

Diffusion is unable to meet oxygen requirements of multi-cellular organisms like humans because diffusion is a slow process. EXPLANATION: This means that the time taken for oxygen to circulate to all body cells is more.

Answer 2

In multicellular organisms like humans, all the body cells are not in direct contact with the surrounding environment . Thus , every cell of the body will not get oxygen as by the process of diffusion from the environment .

Therefore diffusion is insufficient to meet

the oxygen requirements of multicellular

organisms .