The low pH of lysosomes is established by
A) acid hydrolases.
B) ATP-dependent proton pumps.
C) ?-glucuronidases.
D) catalases.
E) superoxide dismutases.
Answer: B
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a. abscisic acid b. auxin c. ethylene d. cytokinin e. gibberellin
Carnivores are indicated by
a. A. b. B. c. C. d. D. e. E
Most human infections caused by species of Rickettsia ____.
A) Are acquired from fomites B) Could be prevented by handwashing C) Are transmitted via vectors D) Are sexually transmitted
Hemophilia is an X-linked trait caused by the allele h. About 1 in 10,000 males (.0001) has
hemophilia. The frequency of h, therefore, is ____________________. Fill in the blank(s) with the appropriate word(s).