Microorganisms
Microorganisms are tiny living organisms that are too small to be seen with the naked eye, and they play a vital role in many Ecosystems. They can be found almost everywhere, from the Human body to the deepest parts of the Ocean. Microorganisms include Bacteria, Archaea, Fungi, and Protists, each with their unique characteristics and functions. They are involved in many processes, such as Decomposition, Fermentation, and Nitrogen fixation, which are essential for the Cycle of life. The study of microorganisms is known as Microbiology, and it has led to many important discoveries, including the development of Vaccines and Antibiotics. Louis Pasteur and Robert Koch are two notable scientists who have contributed significantly to the field of microbiology.