Question

. Why is diffusion insufficient to meet the oxygen requirements of multi cellular organism like
humans? How is this overcome?

Answer 1

Answer:

In multicellular organisms all the cells may not be in direct contact with the surrounding environment. Hence diffusion will not meet all the requirements of all the cells.

Therefore, in human beings, there are specialized tissues and organs that help to meet the oxygen requirements of the body.

Answer 2

Answer:

Diffusion is insufficient for multicellular organism because the multicellular organism require very long process and so complicated , there is specialised tissue for respective function and work . thus, diffusion is insufficient.......