You inoculate a bacterium into three tubes of nutrient broth medium containing added salt: 0.5% NaCl, 5% NaCl, and 15% NaCl. After incubation, you notice significant turbidity in the 15% NaCl medium and modest turbidity in the 5% NaCl medium. There is no growth in the third tube. This organism would be termed ___________. 

The process of sporangium formation and endospore maturation requires 6-8 hours. What is most likely to result if the temperature of the environment was raised to 100°C about 2 hours after the process started?

An organic nutrient that cannot be synthesized by the organism and must be provided is called a/an _____________.

Each of the following is a target of antimicrobial agents except _________.

Viral tissue specificities are called ______.  

Organisms called _________blank live on or in the body of a host and cause some degree of harm.

Cultures of a bacterial strain were incubated in a refrigerator (5°C), on a lab bench (22°C), in a 37°C incubator, and in a 50°C incubator. After incubation, there was no growth at 37°C and 50°C, slight growth in the refrigerator, and abundant growth on the lab bench top. Which term best describes this organism?

Oncogenic viruses include the measles virus.  

Physical agents for controlling microbial growth include all of the following except _____________.

The shortest length of time required to kill all test microbes at a specified temperature is the thermal death point.