Which of the following is not true of polymyxins?
A. They are narrow spectrum.
B. They are toxic to kidneys.
C. They target cell walls.
D. They can be used to treat severe urinary tract infections caused by gram-negative bacilli.
E. The source is Bacillus polymyxa.
Answer: C
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Egg yolk and seed endosperm are examples of passive parental care
Indicate whether the statement is true or false.
Which of the following pertaining to a cut corpus callosum is FALSE?
a. The right hemisphere doesn't know what the left hemisphere is doing. b. The right hemisphere directed the writing of COW but the person could not say what the word was. c. The right hemisphere directs motor activity on the left side of the body. d. The left hemisphere processes language. e. Information between the right and left hemispheres was shared, but reduced by 50 percent.
In mushrooms, karyogamy occurs within the basidium
____________________ Indicate whether the statement is true or false.
Water held behind a dam would best reflect
A. kinetic energy. B. heat energy. C. chemical energy. D. mechanical energy. E. potential energy.