Scientists who believe that sleep has evolved to help increase survival suggest that predators sleep __________ during the day, while prey animals sleep __________ during the day.
A. in open spaces; in caves
B. less; more
C. more; less
D. in caves; in open spaces
Answer: C
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Describe differences between vision in the fovea and vision in the periphery of the eye
What will be an ideal response?
A Type I error has occurred if we
a. reject a null hypothesis that is really false. b. retain a null hypothesis that is really false. c. retain a null hypothesis that is really true. d. reject a null hypothesis that is really true.
Drawbacks to punishment include all of the following EXCEPT that
a. punishment may encourage aggression. b. people and situations associated with punishment may become feared or disliked. c. punishment may encourage escape and avoidance learning. d. punishment has not been shown to be effective in suppressing behaviors.
Which of the following has been associated with an increased incidence of homosexuality and gender-atypical play patterns in girls?
a. having a twin brother b. maternal stress c. prenatal exposure to excessive female hormones d. prenatal exposure to excessive male hormones