microorganisms


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Microorganism
A microorganism (from the , mikros, "small" and , organismós, "organism") is a microscopic living organism, which may be single celled or multicellular. The study of microorganisms is called microbiology, a subject that began with the discovery of microorganisms in 1674 by Antonie van Leeuwenhoek, using a microscope of his own design.

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