Name the organisms that are human symbionts. What role do they play?

representatives of bacteria and protozoa that live in the human intestine. There are 250 billion microorganisms in 1 g of the contents of the colon. Many substances that enter the human body with food are digested with their active participation. Normal development is impossible without intestinal symbionts. A disease in which the number of symbiotic organisms in the intestine decreases is called dysbiosis. Microorganisms also live in tissues, cavities and on the surface of human skin.

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