In order for a frog's visual bug-detector to work, the bug must be
a. a dark color.
b. coming closer to the frog.
c. stationary.
d. moving.
D
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Which of the following behaviors would be considered abnormal based upon the statistical frequency approach?
a. buying groceries c. winning a multimillion dollar lottery b. answering the telephone d. getting married
Which of the following is a part of the brainstem?
a. Cerebral cortex b. Pons c. Thalamus d. Limbic system
The umbilical cord contains
A) two veins and one artery. B) two arteries and one vein. C) two veins and two arteries. D) one vein and three arteries.
Which of the following statements is true of stress?
A. For people to consider an event stressful, they need not necessarily perceive it as threatening. B. Stress may produce biological and psychological responses that improve our overall health. C. Positive events such as getting married or starting a new job are not directly associated with stress. D. An event may sometimes be stressful and at other times provoke no stressful reaction at all.