Introduction
Specific characteristic of microorganisms:
- Microscopic dimension
- Very small to be seen by naked eye
- Diameter:0.1 mm or less
Microorganisms that exist in nature can be grouped under following:
- Virology : study of viruses
- Bacteriology : study of bacteria
- Mycology: study of fungi
- Phycology: study of algae
- Protozoology: study of protozoa
- Nematology: study of nematodes