Which of the following statements is true of REM sleep?
A. Breathing rate decreases during this period.
B. It is characterized by decreased heart rate and the absence of dreams.
C. It occupies a little more than 20 percent of adults' total sleeping time.
D. The activity of skeletal muscles increases during this period.
Answer: C
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During early childhood, physical growth is faster than in infancy.
Answer the following statement true (T) or false (F)
Cross-cultural research from more than 100 countries indicates consistently that
a. self-oriented distress is not really that stressful. b. males are more physically aggressive than females. c. altruism and physical aggression are closely related. d. instrumental aggression is done for its own sake.
Early in psychology's history Charles Darwin, William James, and others proposed that motivation was a result of:
a) instincts. b) incentives. c) drives. d) emotions.
An area of reduced sound around the ear farther away from where a sound originates is referred to as a sound __________
a. umbra b. muting c. depression d. shadow