The males of some animals invest less in raising offspring and, as a consequence, need to compete more for access to females. In these species, one is more likely to find ____________.
Fill in the blank(s) with the appropriate word(s).
Ans: sexual dimorphism
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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
In a psychology class of 100 students, test scores are normally distributed with a mean of 80 and a standard deviation of 5 . Approximately what percentage of students have scores between 75 and 85?
a. 68% b. 80% c. 95% d. 99%
The notion of a "motherhood instinct" was ____.?
a. ?supported by Woolley's research b. ?refuted by Woolley's research c. ?supported by Hollingworth's research d. ?refuted by Hollingworth's research e. ?supported by Woolley's research on the maternal behaviors displayed by mothers of gifted children
Consider the Capilano Canyon experiment (Dutton & Aron, 1974). What is the explanation for why the men crossing the more frightening suspension bridge included much more sexual content in their interviews??
a. ?In the presence of an attractive woman, the men attempted to repress their fear. b. ?Fear-provoking situations exaggerate risk-taking in all areas, including finding a mate. c. ?During times of heightened fear, people often try to distract themselves. d. ?The men misinterpreted physiological signals of fear as sexual arousal.