What is the main function of the ribosomes in the cell?
A. to synthesize DNA
B. to provide strength and structural support for the cell membrane
C. to synthesize proteins
D. to break down proteins into individual amino acids
E. to form the nuclear envelope
Answer: C
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When choosing among competing cladograms, the preferred hypothesis is the one that is the simplest for all characters and their states. This is also known as
A. the maximum likelihood approach. B. the principle of parsimony. C. the Bayesian method. D. the molecular clock. E. the cladistic approach.
What hormone stimulates milk production in women after birth?
a. prolactin b. oxytocin c. estrogen d. HCG e. progesterone
Valley fever, a medical condition caused by Coccidioides immitis, is caused by
A. common allergic reactions that many people have to the fungus. B. entry of the fungal spores by inhalation. C. toxins produced by the fungus. D. a mutation of the common fungal inhabitant of human hair, nails, and skin. E. eating the fruiting body, rather than the mycelium of the fungus.
Which of the following tests does NOT provide information on the lowest concentration of drug effective on a pathogen?
A) Etest B) diffusion susceptibility test C) broth dilution test D) both the Etest and diffusion susceptibility test E) MBC test