________ play a critical role in our immune systems by coordinating the actions of other immune system cells.
A. Memory cells
B. Goblet cells
C. Red blood cells
D. T-cells
E. Epithelial cells
Answer: D
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A disadvantage of the contraceptive sponge is it _____
a. typically prevents ovulation b. is not as effective as other contraceptive methods c. reduces the length of a period d. interferes with future fertility
Which of the following is true about puberty?
a. Boys have a small amount of female hormones within their bodies. b. In terms of internal biological changes, girls' ovaries have not matured. c. The physical changes in puberty are complete by age 13. d. No hormones are released during puberty.
Which statement accurately reflects the reported rates of domestic abuse for low income or high income women?
a. Low-income women are less likely to report domestic violence because they tend to have lower self-esteem. b. High-income women are more likely to report domestic violence because they tend to have higher self-esteem. c. Low-income women are more likely to report domestic violence because of government sponsored initiatives that provide compensation to women who report domestic abuse incidences leading to convictions. d. High-income women are less likely to report domestic violence because they have the option to stay in a hotel or to stay with relatives following a domestic abuse incident; thus circumventing governmental services that would normally facilitate the reporting of the abuse.
Which of the following represents a true distinction between cross-sectional and longitudinal designs?
a) Cross-sectional designs can be used to compare differences across cohorts, while longitudinal designs can be used to compare differences within cohorts. b) Cross-sectional designs are sensitive to changes in methodology, while longitudinal designs are relatively impervious to changes in methodology. c) Cross-sectional designs study the same individuals multiple times, while longitudinal designs study different individuals each time. d) Cross-sectional designs are prone to practice effects, while longitudinal designs are not subject to practice effects.