Question

1.In multicellular organisms all cells are __________________ the surrounding environment .Thus simple diffusion will not meet the requirements of all the cells.

Answer 1

Answer:

in single celled organism the entire surface of the organisms is in contact with the environment for the diffusion of substance but in multicellular organisms all the cell may not be in direct contact with the surrounding environment so, simple diffusion will not meet the requirements of all the cells

Answer 2

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