A single human sperm cell and a single human egg cell contain _____ chromosomes.

A) 23
B) 24
C) 46
D) 48


A) 23

Psychology

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When using a _____ hypothesis, the researcher predicts the direction of the expected difference between the groups

a. null b. nondirectional c. one-tailed d. two-tailed

Psychology

Anthropological research on adolescent sexual behavior suggests

a. a decrease in teenage sexual activity across European countries. b. a decrease in the number of communities willing to accept some form of teenage sexual activity. c. that the majority of cultures are likely to permit or at least tolerate some sexual activity during the teen years. d. that American parents are better at dealing with teenage sexual activity now than they were ten years ago.

Psychology

_____ is a behavior modification technique that rewards appropriate behavior with tokens that can be exchanged later for desired goods and/or privileges

a) A self-help group b) Exposure and response prevention c) Electroconvulsive therapy d) A token economy

Psychology

In the United States, affordable child care is

A) usually high in quality. B) fairly easy to find. C) in short supply. D) the norm.

Psychology