Question

Define pathogens in detail......​

Answer 1

A pathogen or infectious agent is a biological agent that causes disease or illness to its host.

The term is most often used for agents that disrupt the normal physiology of a multicellular animal or plant.

Answer 2

Explanation:

pathogens can be viruses or bacterias..or any such living organisms..it can be DNA or RNA molecules or polypeptides which invades a organism's body and occurs some changes which are always dangerous for the host's body. The pathogens can sometimes be good but most of the times it is harmful and mostly disease causing .