two different topics in communications where knowledge of basic chemical concepts r critical 4 understanding?

Answer 1

Within higher animals and humans, chemistry is very important in understanding the communication between nerve cells, Neurotransmitters and their functions are also modified by drugs. Organ to organ communication is done by chemicals called hormones. Without understanding chemistry, one can only memorize the production and actions of hormones.

Between animals, pheromones are very powerful means of communication. This is especially true of beings of the same species but different sex.