Why Do Cells Communicate

Why do plant cells communicate?
In order for cells to function, they need to be able to communicate with other cells and respond to the external environment. The signal and receptor molecules will determine cell signaling pathways, and signaling cascades affect the actual action by altering gene expression or protein activity. Non-heritable information transmission affects the actual action by altering gene expression or protein activity. Non-heritable information transmission affects behavior between cells, and these behaviors are controlled by concealed genetic information, and reactions to information are necessary to evolutionary processes such as natural selection.

External factors: Changing conditions of sunlight, darkness, temperature