The USFA recommends establishing a rehabilitation operation when the chill factor drops to ___ or lower.
a. 10 degrees F
b. 20 degrees F
c. 15 degrees F
d. 25 degrees F
Answer: a. 10 degrees F
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Which of the following is NOT a mechanism by which antibodies can protect the body from foreign
antigens?
a. neutralization b. agglutination c. stimulation of cytotoxic T cells d. enhancing of phagocytosis e. activation of complement
The “leaves” of ferns are known as
a. rhizomes. b. rhizoids. c. fronds. d. sori. e. none of these.
Looking into your microscope, you spot an unusual cell. Instead of the typical rounded cell shape, the cell has a very narrow middle separating two bulging ends. It sort of looks like the number 8! You realize that this cell is
A) undergoing cytokinesis. B) in the S phase of interphase. C) in the G1 phase of interphase. D) about to undergo mitosis.
Pseudomonas aeruginosa is one of the most notoriously resistant pathogens. Which of the following mechanisms does this bacteria use to evade antimicrobials?
A) target alterations B) reduced permeability C) efflux pumps D) drug inactivation E) This bacteria uses all of the possible ways to evade antimicrobials, which is why it is so good at it.