Which of the following drugs has been shown to reduce the duration and symptoms of influenza?
A. Acyclovir
B. AZT
C. Oseltamivir
D. Penicillin
Answer: C
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Which of the following is the most spontaneous reaction? A reaction that is _____
A) slightly exothermic and leads to a slight increase in entropy B) slightly endothermic and leads to a huge decrease in entropy C) highly exothermic and leads to a huge decrease in entropy D) slightly exothermic and leads to a huge increase in entropy
You've just isolated a new bacterium in pure culture, and you culture it on a general purpose medium where its cells have a coccobacillus morphology. When you examine the cells after culturing on a variety of differential media, you find that in some cases, the cells appear as coccobacillus, but in others, they can be filamentous, cocci, or club-shaped. The best explanation for this observation is that
A. your culture has become contaminated. B. the media were incubated at an incorrect temperature. C. the microscope is out of adjustment. D. the differential media are contaminated. E. the bacterium is pleomorphic.
All cephalic organisms:a
have bilateral symmetry. b. have a coelom. c. receive stimuli equally from all directions. d. have bilateral symmetry and a coelom. e. have bilateral symmetry, a coelom, and receive stimuli equally from all directions.
The size of the motor area in the brain for any specific body part is relative to:
a. the rest of the body.
b. its position in the body. c. the complexity of its movements. d. the number of muscles it contains. e. the area of the brain that controls it.