In multicellular organisms, simple diffusion is not sufficient to meet the needs of all cells mainly because:
Question
In multicellular organisms, simple diffusion is not sufficient to meet the needs of all cells mainly because:
All cells are not in direct contact with the environment
Cells do not need oxygen
Cells are too small
Diffusion is too fast
Answer
All cells are not in direct contact with the environment
Detailed Explanation
In multicellular organisms not all cells are in direct contact with the surrounding environment, so diffusion alone cannot meet their requirements. — Examisthan.com