What are Some Types of Body Flora?
The average adult human body has about 1013 cells, around 1600 times greater than the number of human beings on Earth. It is estimated that for every cell in the human body, there are about ten microorganisms, mostly bacteria in the large intestine. This is possible because the volume of a typical bacteria cell may be more than 1000 times less than one of the body’s cells. Along with the bacterial body flora, the everyone is also colonized by fungi (mainly yeasts), protists, and archaea (mainly methanogens), although less is known about these because of their scarcity relative to bacteria. In the domain of macroscopic body flora, when found inside the body, these are usually harmful parasites such as tapeworms. However, certain humans may have thousands of macroscopic body flora in their skin or hair, often in the form of mites. Scientists believe there may be as many as a million mite species in the world, adapted to every conceivable environment — including the human body. 99% of ba
