When light strikes a molecule of photopigment, the membrane potential undergoes a(n) __________as a result of __________.
A. action potential; release of excitatory transmitter
B. hyperpolarization; the splitting of the photopigment
C. depolarization; the splitting of the photopigment
D. action potential; release of inhibitory transmitter
Answer: B
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Chapter 12 discussed a new area of research called fat studies. The major emphasis in this field is that
a. our culture needs to place more emphasis on the way that high-fat foods are very dangerous to our health. b. exercise is the only effective way to lose weight. c. we live in a culture that has negative attitudes toward fat people. d. when people lose weight by eating healthier food, they seldom regain the lost weight.
Which girl is most likely to be dieting?
a. Shawna, a European American b. Lashawna, an African American c. Selena, a Hispanic American d. Varana, a Pakistani American
Psychoneuroimmunology is a discipline that studies the relationship between:
a. behavior and cancer b. behavior, the nervous system and the immune system c. mental health the immune system d. exercise and the immune system
If your final answer should contain two decimal places, then in the intermediate steps you should
a. carry at least three decimal places. b. round to the same number of decimal places as your final answer will contain. c. round to the same number of decimal places as the original scores contained. d. round to whole numbers.