In which portion of the nephron do hormones control water and salt reabsorption?
a. glomerulus
b. proximal tubules
c. loop of Henle
d. distal tubules
e. Bowman’s capsule
ANSWER: d
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Viral resistance in crops would be regulated by which agency?
A) FDA B) USDA C) EPA D) USPTO E) None of these choices
Which of the following statements concerning a secondary immune response is false?
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Which of the following is NOT an example of a human activity that directly threatens the biodiversity of species?
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Female cardinals select male mates in part based on their bright red color. What effect would this have on a cardinal population that was in Hardy-Weinberg equilibrium?
A. The frequency of red alleles would be less than those predicted by Hardy-Weinberg equilibrium. B. The red allele frequencies would decrease because of equilibrium. C. The red allele frequencies would remain unchanged because of equilibrium. D. The frequency of red alleles would be equal to those predicted by Hardy-Weinberg equilibrium. E. The frequency of red alleles would be greater than those predicted by Hardy-Weinberg equilibrium.