The __________ is a fluid-filled sac that cushions the embryo and maintains a constant temperature
a. placenta c. germ disc
b. umbilical cord d. amniotic sac
d
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In recent years, evolutionary psychologists have focused most attention on which topic?
a. racial/ethnic differences b. gender differences c. age differences d. language differences
A young child is suffering from a life-threatening disorder in which he involuntarily regurgitates all food. When no other therapies work, the child is given electric shock to eliminate his vomiting behavior. The electric shock is a form of ____
a. ?systematic desensitization therapy b. ?positive reinforcement c. ?punishment d. ?covert sensitization
What aspect of Aristotle’s philosophy became the cornerstone of most modern theories of learning?
a. The reminiscence theory of knowledge b. The laws of association c. The notion of common sense d. The assumption that the souls of the living organisms are arranged in a hierarchy
Judith is startled when her 6-year-old daughter, Laura, sleepwalks into the family room. It is most likely that Laura is experiencing the __________ stage of the sleep cycle
a) REM b) first c) third d) fourth