Which of the letters in the above figure represents
the anther where pollen is produced?
a. A
b. B
c. C
d. D
e. none of these
Answer: a
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A direct immunofluorescent antibody (DFA) test was performed on a sputum sample that yielded a positive test. The organism grew on BCYE medium and was a thin gram-negative, faintly staining bacillus. What is the drug of choice for this organism?
a. Fluoroquinolones b. Erythromycin c. Penicillin d. Aminoglycosides
All of the following are involved with chewing the cud EXCEPT
a. regurgitation of food. b. increased breakdown of food. c. exposure of new surfaces for rumen microbes. d. incorporation of more oxygen into the food.
Four of the five structures listed below are parts of
the inner ear. Select the exception. a. eardrum b. oval window c. scala tympani d. basilar membrane e. cochlea
What member of the human intestinal microbiota occasionally causes life-threatening disease?
A) Escherichia coli O157:H7 B) Clostridium difficile C) Salmonella enterica D) Giardia intestinalis E) Lactobacillus