Once people pass __________ years, the contribution of heredity to length of life decreases in favor of environmental factors
A) 45 to 50
B) 55 to 60
C) 65 to 70
D) 75 to 80
Answer: D
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Which expression is a morpheme?
A) b B) boy C) the boy D) the boy cried
Fisher and Harris found that observers learned more when a model _______
a. frowned and shook her head b. showed no emotional reaction c. vacillated between happy and sad d. avoided looking at the observer
Random assignment is a scientific procedure that:
A. reduces the likelihood that experimental groups will be different from one another in some way. B. ensures that every member of the population has an equal chance of being selected. C. limits the extent to which the placebo effect sways results. D. prevents experimenter bias.
An oophorectomy is the surgical removal of:
A) the ovaries. B) the uterus. C) cancerous cervical tissue. D) the fallopian tubes.