Opportunistic pathogens
A. cause disease in every individual.
B. are always pathogens.
C. cause disease in compromised individuals.
D. have well-developed virulence factors.
Answer: C
You might also like to view...
When a photon collides with a pigment in a photosystem, an electron is boosted to a higher orbital and then ________
a. returns to its ground state, emitting the extra energy as heat b. returns to its ground state, emitting the extra energy as a photon of lower energy c. the electron enters an electron transfer chain in the stroma d. the electron enters an electron transfer chain in the thylakoid membrane
Photorespiration occurs when stomata ________ the leaf cell
a. open and water molecules escape from b. open and nitrogen gas enters c. close and oxygen levels rise within d. close and carbon dioxide is unable to enter
The source of sulfur for Hydrogen-Sulfide-producing bacteria in the Triple Sugar Iron Agar is
A. Sodium thiosulfate B. Ferrous sulfate C. Sodium sulfide D. Ferric citrate E. Sodium sulfate
The ________ involves proteins in the plasma that are activated when bacteria or fungi are present. These puncture holes in the cell walls of invaders.
A. complement system B. inflammatory response C. macrophagic defense system D. natural killer cell