Which of the following systems in the human brain tends to act more as a unit and is responsible to open the bronchi, reduces blood supply to the skin, increases the heart rate, and reduces stomach motility?
A. The sympathetic system
B. The limbic system
C. The enteric nervous system
D. The lymphatic system
Answer: A
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Which of the following is the least accurate measure of variability?
a. The variance b. The standard deviation c. The range d. They are all equally accurate
About 30 states had miscegenation laws as recently as:
a. World War I. b. the 1920s. c. the Great depression. d. World War II.
Explain the demographic transition
What will be an ideal response?
Chad is starting to get discouraged because he has spent a lot of time and energy working for social change, but does not think he has made much of a difference. He is comforted by the words of Frances Fox Piven, the sociologist, who noted, in regard to predicting social movements that __________
A) they come every fifty years B) most of the really important work has already been done C) no one can successfully predict when they will occur D) social movements are not really necessary anymore