The next THREE questions refer to this scenario: A rancher has 400 feet of fencing with which to enclose two adjacent rectangular corrals. The rancher wants to maximize the enclosed area overall.  Let x be the length of the horizontal fence and let y be the length of the vertical fence.

Which of the following best illustrates how microbiology supports public health and epidemiology?

What term is used to describe blood that contains bacteria?

Life-threatening bacterial infections are best treated with…?

Which drug classes are bacteriostatic and which are bactericidal?  Match the mechanism (mode) of action for antibiotics to its’ effect against pathogens.  Note: Some answers may be used more than once. 

What virulence factor, produced by Staphylococcus aureus, allows the bacterium to be coated in human fibrin that protects it from phagocytes? 

Select all scenarios that would cause an NK cell to destroy a human host cell. 

What is pathogenicity?

What complement cascade begins with antibodies binding to a pathogen?

Place the following stages of pathogenesis in order starting with 1 as the first stage.