Question

1. Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms
humans​

Answer 1

Answer:

Explanation:diffusion is insufficient to meet requirement of oxygen in multicelluler because oxygen when enters in our body , the hb has not enough power to again and again do transportaion of co2 to lungs and o2 to reach into the cell organells so, diffusion is needed

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 .