But the communication model is applicable in even broader contexts.
Within the organism, its functioning at various levels involves sending and receiving of encoded messages (information). Cells in a organism must communicate in order to regulate growth and development. Some forms of communication are local; others are long-distance.Consider local cell-to-cell communication first. All cells have a resting potential, that is, they maintain an electrical charge across the plasma membrane of the cell. Some cells, however, such as neurons are excitable.They may be stimulated to create a tiny electrical current.