Microbiology is the field of biology that deals with micro organisms.
Study of micro organisms is Microbiology.
It is the study of living organisms of microscopic size. It is the study of organisms that are usually too small to be seen by the unaided eye. The microorganisms include bacteria, fungi, algae, protozoa, and the viruses.
To observe, study, and understand them microscopes are required. The study of microbes was possible with the invention of microscopes.
To understand how they live, grow, reproduce and their role in the nature. It is concerned with their form, structure, reproduction, physiology, metabolism and classification.
It includes the study of their distribution in nature, their relationship to each other and to other living organisms, their effects on human beings and on other animals and plants, their abilities to make physical and chemical changes in our environment, and their reactions to physical and chemical agents.