Which of the following phyla is unusual, as it is composed of a single species?

a. Gnetophtya


b. Anthophyta
c. Ginkgophyta
d. Coniferophyta
e. Cycadophyta


c

Biology & Microbiology

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A patient has an infection caused by S. moniliformis. Which of the following is the preferred antibiotic choice?

a. Penicillin b. Tetracycline c. Streptomycin d. All of the above

Biology & Microbiology

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

Biology & Microbiology

Untreated gonorrhea in males may lead to

A. sterility. B. urinary tract infections. C. prostatic abscesses. D. orchitis. E. All of the choices are correct.

Biology & Microbiology

The process through which species not closely related may come to resemble one another if they live in a similar environment is known as

A) coevolution. B) homology. C) convergent evolution. D) paedomorphosis.

Biology & Microbiology