Bacteria (/ b æ k ˈ t ɪər i ə / ( listen); common noun bacteria, singular bacterium) is a type of biological cell.They constitute a large domain of prokaryotic microorganisms.
Bacteria are microscopic single-celled organisms that can be helpful, such as those that live in our guts, or harmful, such as flesh-eating bacteria.
Bacteria: Bacteria, microscopic single-celled organisms that inhabit virtually all environments on Earth, including the bodies of multicellular animals.
What are bacteria? Find out about the different groups of bacteria, how they reproduce and their survival skills.
bac·te·ri·a (băk-tîr′ē-ə) n. Plural of bacterium. bacteria (bækˈtɪərɪə) pl n, sing -rium (-rɪəm) (Microbiology) a very large group of microorganisms ...
Bacteria are single-celled organisms that exist in their millions, in every environment, inside or outside other organisms. Some are harmful, but others support life.