A student asks the instructor how vaccines provide active immunity. The instructor's best answer explains that active immunity is provided by stimulating production of antibodies to what?
A) A bee sting
B) A specific protein
C) A foreign substance in the body
D) A snake bite
B
Feedback:
Vaccines provide active immunity by stimulating production of antibodies to a specific protein, which may produce the signs and symptoms of a mild immune reaction, but it protects the person from the more devastating effects of disease. This protein may be a foreign substance, a bee sting, or a snake bite, but these answers are too narrow in focus.
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Paternalism in health care:
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A t was calculated to be -2.10 for a comparison of 50 men and 50 women with regard to attitude toward organ donation, measured on a 10-item scale. The tabled t for two-tailed ? = .05 is 2.01 . The researcher:
a. Can accept the null hypothesis that men and women have comparable attitudes b. Can reject the null hypothesis that men and women have comparable attitudes c. Can accept the alternative hypothesis that men have more favorable attitudes d. Can accept the alternative hypothesis that women have more favorable attitudes