Barry Marshall demonstrated that ulcers were caused by bacteria by:

 A transducing phage contains:

Why are food products routinely screened for the presence of E. coli? (Check all that apply)

What characteristic(s) makes Acinetobacter baumanni a threat? (check all that apply)

Why can people with cholera die so quickly from dehydration?  The cholera toxin:

Why do curds form during the yogurt fermentation process?  (The milk becomes solid). Culture bacteria produce _______, which causes _______.

The Veterinary Feed Directive has essentially eliminated antibiotic use:

In 2016, E. coli was isolated from chickens on a new organic farm.  The isolate contained a plasmid carrying resistance genes to six antibiotics including tetracycline, sulfonamide, and gentamicin.  It also carried genes for resistance to heavy metals and a quaternary ammonium sulfate (Quat) disinfectant.  The farm feeds the chicks GMO-free, organically raised grain and supplements the diet with zinc and copper to promote growth and reduce disease.  No antibiotics are used.  After three years of organic practice, in 2019 we would expect to find E. coli that are: 

The most accurate method of classifying microorganisms is by comparing:

Which of the following arranges terms from most general to most specific?