From our antibiotic lab, which of the following was a good broad-spectrum antibiotic?

Each of the following features is common to both bacteriophage and animal virus infections, EXCEPT:

You own a restaurant and are aware the one of the food items in your refrigerator is contaminated. You are curious to know which one it is before you throw it out. In order to do so, you blend up the following: raw chicken; cooked chicken; and beef bologna deli meat and place them into their own flask and dilute them into their own petri dishes with melted agar. You make 1:10, 1:100, 1:1000 & 1:10000 dilutions of each. After incubating the samples overnight you pick the following samples to measure: the cooked chicken sample with 32 CFUs (from the 1:10000 sample), the raw chicken sample with 420 CFUs (from the 1000 sample) and the beef bologna deli meat with 3590 CFUs (from the 1:100 sample). Which of the following indicates the sample that has BOTH the correct total number of CFUs AND MOST contamination?

Given the following information: 240 plaques, a 1:100 dilution and a sample volume = 0.1 ml, which of the following is the correct PFUs/mililiter?

Which of the following statements concerning broad spectrum antibiotics is TRUE?

From our antibiotic lab, which of the following antibiotics were both Staphylococcus epidermidis and Escherichia coli resistant to?

Which of the following genus and species of bacteria was the Most Probable Number indicator species?

The tail fibers of a bacteriophage are most useful during which of the following stages of the lytic replication cycle?