Classification

The number of bacterium species is quite large. Until recently, all bacteria were classified in the Moneran Kingdom. Most scientists today classify bacteria into two kingdoms:

• Archaebacteria - bacteria that live in extreme conditions. For example, bacteria that live in the "Great Salt Lake" of Utah and in the fissures of hot volcano vents.
• Eubacteria — bacteria that live in typical environments, like on your hands, in foods, and in soil.

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