The treatment for pneumonia caused by Pneumocystis jiroveci in AIDS patients is ________.

A. Streptomycin
B. combination of trimethoprim and sulfisoxazole
C. Amantadine
D. Miconazole


Answer: B

Biology & Microbiology

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Sulfate and sulfite reductions carried out by Desulfovibrio and related microorganisms are assimilatory processes.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Gene flow ____

a. has a homogenizing influence between two populations b. speeds up the divergence of two populations c. increases the genetic variation between populations

d. is promoted by isolating mechanisms e. promotes inbreeding

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Which of the following mechanisms helps prevent gastric juice from digesting the stomach lining?

A) mucus coating the inside surface of the stomach B) contractions of the stomach constantly moving chyme into the small intestine C) the continuous secretion of gastric juice D) the inactivation of pepsin by hydrochloric acid

Biology & Microbiology

Treatment and control of anthrax includes

A. use of antimicrobics such as ciprofloxacin for active cases. B. vaccination of livestock. C. toxoid for military and those with occupational exposure. D. proper disposal of animals that have died from anthrax. E. All of the choices are correct.

Biology & Microbiology