You can buy bacteria (and also yeasts, molds, and viruses) from institutions called type culture collections and from some commercial sources that supply high school and university Biology classes. Here are some sources for the USA:
ATCC (American Type Culture Collection) http://www.atcc.org This is the authoritative source, but it serves research institutions predominantly and is pretty expensive. Supply of anything to individuals is restricted.
Presque Isle Cultures http://www.picultures.com has a small collection and sells non-pathogenic strains also to individuals.
Carolina Biological Supply also sells a few bacteria including E. coli:
http://www.carolina.com/product/escherichia+coli+b%2C+living.do?keyword=coli&sortby=bestMatches
E. Coli
Neither. E Coli is a very deadly form of bacteria.
Escherichia coli
E. coli is the name of a type of bacteria.
Nope. E Coli is a bacteria, therefore, it is a prokaryote, NOT eukaryote
e coli
Yes, salt can effectively kill E. coli bacteria by dehydrating them and disrupting their cellular functions.
E coli is a type of bacteria that is present in the human gut and can cause food poisoning. E coli is prokaryotic and not eukaryotic.
A very common species of bacteria (that lives in most peoples guts) is E. coli (Escherichia coli).
No, in general bacteria do not have nuclei.
It is a protein found in E-coli bacteria.
rhizobium,streptomyces,E. coli are some of the helpful bacteria