A viticulturist wants to grow larger grapes. Which specific hormone would a viticulturist apply to the plants?
A. cytokinin
B. ethylene
C. gibberellin
D. abscisic acid
E. auxin
Answer: C
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The ability of glucose to repress the lac operon depends on which of the following effector molecules?
A. allolactose B. cAMP C. tryptophan D. ADP E. starch
The "electrochemical gradient" that determines how a charged ion will move through a permeable membrane depends on
A. the electrical forces acting on that ion. B. the difference in concentration of that ion on either side of the membrane. C. the ratio between the charge on the ion and its atomic mass. D. the combined effects of electrical forces and concentration differences across the membrane. E. All of the choices for this question are correct.
To grow roses commercially, which growing conditions would be optimal?
What will be an ideal response?
The structure labeled "A" is the
a. aorta. b. inferior vena cava. c. pulmonary artery. d. pulmonary vein. e. superior vena cava