Which hormone in males do some scientists speculate may lead to differences in male and female brain structure, and later variations in gender-related behavior?
A. serotonin
B. dopamine
C. androgen
D. oxytocin
Answer: C
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The role of the placenta is to: a. Supply nutrients to the developing fetus
b. Aid in respiratory and excretory functions of the fetus. c. Secrete hormones necessary for the continuation of the pregnancy. d. All of these
Which types of problems involve pervasive feelings of insecurity, inferiority, and a dissatisfaction with life with the person exhibiting restrictive, self-defeating behavior patterns and a tendency to use elaborate defense mechanisms or avoidance responses to get through the day?
a. anxiety-related b. psychotic c. cyclothymic d. delusional
In longitudinal studies, the __________ tends to show greater shrinkage than the __________
A) occipital lobe; corpus callosum B) parietal lobe; prefrontal cortex C) prefrontal cortex; occipital lobe D) temporal lobe; frontal lobes
In males, a second orgasm is temporarily (or completely) prevented by a
a. refractory period. b. failure to ejaculate. c. plateau period. d. resolution phase. 2 points