In order to identify the minimum bactericidal concentration in broth dilution tests, what must be determined first?
A) how many bacteria grow on a plate from each of the broth dilution tests
B) minimal inhibitory concentration
C) minimal bacteriostatic concentration
D) drug concentration and bacterial concentration
E) how successfully the bacteria grow in broth cultures
Answer: B
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Which of the groups shown above is a functional group that helps stabilize proteins by forming covalent cross-links within or between protein molecules?
A) A B) B C) C D) D E) E
Flu viruses are most likely to arise in the Far East because
A. of lack of medical care. B. common hosts (ducks, chickens, pigs) for influenza viruses live in close proximity to humans. C. of lack of sanitation. D. of overpopulation in these areas.
The nuclear envelope is perforated with openings called nuclear ________ that regulate the movement of molecules through the envelope.
Fill in the blank(s) with the appropriate word(s).
Which of the following organisms are adapted to living in a desert?
A) spadefoot toads B) oak trees C) lemmings D) spruce trees