Human microbiome
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The human microbiome is the aggregate of all microbiota that reside on or within human tissues and biofluids along with the corresponding anatomical sites in which they reside, including the gastroint
Graphic depicting the human skin microbiota, with relative prevalences of various classes of bacteria
Diagram of human gastrointestinal tract microbiota depicted in various regions
Bacteria
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Bacteria are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bact
Rod-shaped Bacillus subtilis
An electron micrograph of Halothiobacillus neapolitanus cells with carboxysomes inside, with arrows highlighting visible carboxysomes. Scale bars indicate 100 nm
The exterior of Pseudomonas, a genus of Gram-negative Bacteria.