While pregnant, Terry was exposed briefly to a very small amount of a teratogen. The effects of exposure will be
a. serious because teratogens, by definition, cause severe birth defects.
b. maximized, depending on her genetic makeup.
c. minimized by the small amount and brevity of exposure.
d. varied, depending on the timing of the exposure.
D
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The percentage of identical (monozygotic) twins in which both twins are homosexual is 50 percent. This means a. homosexuality is determined by genetics
b. genes are only one influence for sexual orientation. c. family relationships determines sexual orientation. d. genes are not an influence for sexual orientation.
When eating a bowl of sweet vanilla ice cream, the chemical stimuli are converted into electrical signals by the:
A. taste buds. B. saliva. C. papillae. D. olfactory bulb.
What is the purpose of the intervention mediator strategy?
a) To focus on subject characteristics that influence the direction or magnitude of change b) To examine predictors and correlates of change c) To focus on mechanisms of change d) To enhance the components leading to change
When scientific colleagues are critical of your experimental design they are probably motivated by a desire to
A) have their own way. B) show you up in public. C) help you improve your design. D) impress you with their knowledge.