30 Million Estimated number of microbial species. Of these, only 70 are known to cause disease. About 1,000 species normally live on the surface of human skin, according to a recent study by the National Human Genome Research Institute.
5x10^30
Estimated number of bacterial cells on earth. More than half of them live buried in marine sediment; about 70 trillion reside in and on your body.
235 Maximum temperature, in degrees Fahrenheit, at which the most heat-resistant microbe known,
, can multiply. It makes its home in the walls of deep-sea hydrothermal vents. At the other extreme, microbial activity has been detected in permafrost soils in Antarctica at temperatures as low as –4°F.
580,076 Number of base pairs (the twinned “letters” in the DNA code) in the genome of the bacterium Mycoplasma genitalium, making it the smallest known genome of an independently replicating cell. Researchers who hope to ...
