Do all multicellular organisms have cells that communicate?

In multicellular organisms, cells send and receive chemical messages constantly to coordinate the actions of distant organs, tissues, and cells.The ability of cells to communicate through chemical signals originated in single cells and was essential for the evolution of multicellular organisms.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.