ANATOMY

Detailed explanation-1: -The harmful microorganisms are called pathogens. The diseases causing microorganisms include bacteria, viruses, protozoa, fungi and a few variations of worms. Once they invade the host cell, they disrupt or damage the normal cellular activities.

Detailed explanation-2: -Pathogens. A pathogen or infectious agent is a biological agent that causes disease or illness to its host. This term is most often used for agents that disrupt the normal physiology of animal or plant. Pathogens can be a bacterium, virus, or other microorganisms that can cause disease.

Detailed explanation-3: -A variety of microorganisms can cause disease. Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms.

Detailed explanation-4: -Flu, tuberculosis, ringworm, whooping cough, or HIV: the list of diseases caused by viruses, bacteria, or fungi is long. Although the pandemic has made people much more concerned with protecting themselves from dangerous germs, many are not aware of the differences between the different types of microorganisms.