Topic
Bacteria
3 questions tagged Bacteria — spanning every one of the seven Ws.
what
What is a biofilm?
A biofilm is a community of microorganisms attached to a surface and surrounded by a protective slimy matrix. Biofilms can form on teeth, rocks, pipes, and medical devices.
MicroorganismsBacteria
what
What is a bacterium?
A bacterium is a single-celled microorganism with no true nucleus. Bacteria are found almost everywhere on Earth and can be helpful, harmless, or harmful.
MicroorganismsBacteria
where
Where is the human mouth home to the most bacteria?
The mouth contains one of the body’s richest microbial communities, especially on the tongue, teeth, and gums. Dental plaque is a biofilm that forms on tooth surfaces.
Human BodyBacteria