Friday, September 19, 2008

Bacteria as part of Microba

Bacteria is the common name for a vast group of one celled microscopic organisms that encompasses the smallest, simplest, and perhaps first form of cell life that evolved. They constitute one of two divisions in the kingdom Monera. Bacteria furnish both the raw material and the chemical machinery for their own reproduction, whereas viruses, for example, do not. The oldest sign of life is a fossilized bacterial at about 3.5 billion years old.

The study of bacteria is called bacteriology, which belongs to the broader is called bacteriology, or the study of all types of microorganisms, including one celled protozoans, yeast, and algae. Medical microbiology is concerned with the behavior and control of pathogens, which are microorganisms that cause infections Diseases in humans and others animals.

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