Which of the following contraception techniques consists of avoiding intercourse during the time of
the month when the egg can be fertilized?
a. withdrawal
b. tubal ligation
c. dilation and evacuation
d. rhythm method
e. time of the month method
D
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The night prior to a football game, the coach tells his students to eat pasta to “carbo load”
their bodies. Excess carbohydrates are stored as __________ in animals.
a. glucose b. simple sugars c. glycogen d. starch
How many carbon dioxide molecules are released on each turn of the citric acid cycle?
a. Two b. Eight c. Four d. Three
Which factor has NOT been implicated in breaking
dormancy? a. cytokinin movement from leaves to buds in late summer b. action of abscisic acid in the spring c. gibberellin accumulation in buds in late autumn and winter d. an exposure to low temperatures for hundreds of hours e. all of these
During the denaturation step of PCR, ____ bonds are broken when DNA is heated
a. hydrogen b. double-stranded c. ionic d. metallic e. covalent