The deer waits motionlessly, hidden in the thicket as the band of hunters approach. As they get closer, their dogs bark, picking up the scent of their prey
In a futile effort to escape, the deer bolts. Which of the following most accurately describes the nervous system of the hunted deer at this point?
a. Its sympathetic nerve fibers are more active than its parasympathetic nerve fibers.
b. Its parasympathetic nerve fibers are more active than its sympathetic nerve fibers.
c. Both its sympathetic and parasympathetic nerve fibers are equally active.
d. Neither its sympathetic nor its parasympathetic nerve fibers are aroused.
a
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According to the National Center for Education Statistics, what percentage of high school students carried a weapon to school in the month prior to being surveyed?
A. 6% B. 15% C. 25% D. 40%
Which of the following is true with regard to using animals as research subjects?
a. Many of the basic biological mechanisms underlying animal behaviors are significantly different than those underlying human behaviors. b. Animal protection organizations have suggested that the only way to ethically study animals is to observer them in their natural environments rather than in laboratory settings. c. It is possible to obtain informed consent when using animal subjects. d. Animal suffering is a variable that does not need to be considered when designing an experiment because animals' brains are not capable of registering pain or discomfort in a way that interferes with legitimate research questions.
Which of the following statements is the most accurate with regard to life expectancy?
a. There is no single trend about gender differences for life expectancy that can be generalized to the entire world, because nearly every country shows different patterns of life expectancy based on lifestyle choices. b. On average, men outlive women by 3 years throughout the world, but women outlive men by 2 years in the United States. c. On average there is no difference in life expectancy between men and women throughout the world, however in the United States men outlive women by 5 years. d. On average women outlive men by four years throughout the world, and by 5 to 6 years in the United States.
If the results of Rosenzweig's study of rats raised in enriched environments were to be generalized to children, this would imply that we should be most concerned about which of the following?
a. raising children in environments that did not allow for exploration and play b. raising children in environments in which they had to care for younger children c. placing children in day-care centers, even if the centers were well run d. making sure that children get 100% of their daily doses of all important vitamins