The unconscious control of respiration and circulation are associated with the _____
A) thalamus
B) cerebellum
C) medulla oblongata
D) cerebrum
C
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A physician sends a stool sample to your lab, and wants to know if there are lactose fermenting microbes in the sample. How might you determine if these microbes are present or not from this mixed-microbe specimen?
A. Streak the sample for isolation on Thayer-Martin agar (which contains lactose and particular antibiotics for selectivity). B. Streak the sample for isolation on a blood agar plate (which contains lactose AND red blood cells that enrich the culture for iron). C. Streak the sample for isolation on a MacConkey agar plate (which contains lactose and a pH indicator that turns pink when acid byproducts are present). D. None of the above would work-there's no way to reliably determine this feature from the specimen given.
An individual who is attracted to light is exhibiting
a. negative phototaxis. b. positive phototaxis. c. negative thigmotaxis. d. positive thigmotaxis.
The ATP and NADPH synthesized during the light reactions are
A) pumped into a compartment within the thylakoid membrane. B) moved to the stroma. C) transported into the nucleus. D) dissolved in the cytoplasm. E) transported to the mitochondria.
Some bacteria are resistant to antimicrobials due to the activity of ________, which removes many of them
A) plasmids B) porins C) efflux pumps D) lipopolysaccharides E) ribosomes