The word that signifies "within the cell" which alludes to the signals moving from one place then onto the next inside the cell is the term "INTRACELLULAR".
In multicellular life forms, cell correspondence is indispensable. Cells convey through synthetic and mechanical signs and this is the cells method for survival, they get and process data from the outside condition. Multicellularity of a living being needs cell-to-cell correspondence on the grounds that through this, various cell types can participate together to function and join to frame diverse tissues and organs in the body.