Which of the following does (do) not always require the presence of living bacteria?
A. Food poisoning
B. Bacterial diarrhea
C. Intoxications
D. All of the choices are correct.
Answer: D
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Urinary tract infections
A. are relatively rare. B. are the most common nosocomial infections. C. include puerperal fever. D. are not considered STIs. E. are the most common nosocomial infections AND are not considered STIs.
In animal cells, glycolysis and gluconeogenesis are regulated to ensure that both processes are reciprocally active. This regulation involves each of the following compounds except
A) NADH. B) fructose-2,6-bisphosphate. C) AMP. D) acetyl CoA. E) cAMP.
What is the evolutionary origin of light skin in humans?
A) Light skin evolved several times in response to high ultraviolet light levels. B) Light skin evolved several times in response to low ultraviolet light levels. C) Light skin evolved several times in areas where there was no malaria. D) Light skin evolved as an adaptation that decreased folate levels in humans.
Which feature or structure of Bacillus anthracis enables it to evade death by macrophages and grow inside macrophages?
a. capsule b. endospore c. pilus d. siderophore