Question

why multi cellular organisms require special organisms from r exchange of gases between yheir body and environment?​

Answer 1

Answer:

Explanation:

A reason is that multicellular organisms need special organs for exchange of gases with the environment because of prokaryotic cells found in the body. The cells are not in contact with the environment and therefore diffusion would not work in the exchange of gases. The organs in the body therefore serve this purpose.

Answer 2

Multi cellular organisms require special organisms from exchange of gases between their body and environmen because they are made up of many cells just as a wall is made up of bricks .Therefore it is necessary that each cell should get Oxygen therefore they required special organisms for exchange of gases.