Microorganism

Microorganisma is a large group that is included bacteria, viruses, spores and others micro creature. A large group of prokaryotic microorganism characterized by multiplying via fission or forming spores, and generally lacking chlorophyll or distinct nucleus surrounded by a membrane. Bacteria furnish both the raw material and the chemical machinery for their own reproduction, whereas viruses, for example do not. 

Bacteria is constitute one of division in the kingdom Monera. Bacteria are unicellular and often classified by shape and may be spherical, spiral, rodlike, or coma shaped. They may be saprophytic (bacteria are the major the composers in most ecosystem), parasitic (such as those causing diseases such as pneumonia or typhoid fever), or auto-trophic (hydrogen sulfide bacteria).

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