Question

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

Answer 1

Here's your answer!

• Diffusion is insufficient to meet the oxygen demand of multicellular organisms because the body of multicellular organisms are complex and the transportation can't happen by diffusion.

Answer 2

Answer:

Multi-cellular organism’s like humans have very big body and require a lot of oxygen to diffuse into body quickly in order to meet the oxygen requirement. Diffusion is a slow process which will take a lot of time to circulate oxygen to all the body cells. Because of its slow nature diffusion is insufficient to meet the oxygen requirements of multicellular organisms like humans.