The lecturer explained that animals and humans have similar brains because they share a common evolutionary ancestor. The scientific term for this relationship is _________________.
a. heterozygous
b. homologous
c. heterogeneous
d. homozygous
Ans: b. homologous
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The ______ uses variance terms based on the sum of squared differences between the sample means and the overall mean.
A. two-sample t test B. analysis of variance (ANOVA) C. independent samples t test D. paired/related samples t test
A loose connection between theory and method threatens _________ validity
a. internal b. external c. construct d. statistical
Which of the following is true about nicotine's effects?
A. Nicotine is the ingredient in cigarettes that causes increased cancer risk. B. Nicotine inhibits dopamine neurons. C. Nicotine stimulates the acetylcholine receptor. D. Nicotine stimulates the endorphin receptor.
Which of the following is true regarding the relationships between poverty, broken families, and juvenile delinquency?
a. Poverty causes broken families, which causes juvenile delinquency. b. Juvenile delinquency causes poverty and broken families. c. Broken families cause poverty, which causes juvenile delinquency. d. Poverty and broken families are risk factors for juvenile delinquency.