Species #7

Common name: E coli
Scientific name: Escherichia coli
Most strains of E coli are harmless and lives in intestines of humans and animals. However, E. coli 0157:H7, is a powerful strain that produces a powerful toxin that can cause illness. An outbreak traced to this strain was caused by eating undercooked ground beef.
E coli is a bacteria and it acquires nutrients by breaking down dead organic matter. This bacteria helps our intestines break down waste.
I think that E coli would be domesticated because it lives within our bodies and we are accustomed to it being there.