Jessica and Dawn are identical twins who were raised apart for most of their lives. When in their twenties they independently developed similar interests, including a strong interest in ice skating. This observation is consistent with the idea that
a. their interest in ice skating was genetically determined.
b. some aspect of their common genotype caused them to pick similar niches.
c. their interest in ice skating was environmentally determined.
d. their interest in ice skating is neither genetically nor environmentally determined.
A
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When the correlation coefficient representing the relationship between X and Y is intermediate, then all of the following are true except
a. there is not a perfectly consistent association. b. there are different Y scores associated with a single X score. c. prediction of Y from a known X score has some error. d. all data points fall on the regression line.
The range of reaction for a strongly canalized trait will tend to be
a. narrow, with a small range of possible outcomes. b. moderate, with a broader range of possible outcomes. c. wide, with a very large number of diverse possibilities. d. unpredictable in the absence of further information.
At what age do most infants get half or more of their sleep at night, much to the relief of their parents?
A. 3 months B. 6 months C. 12 months D. 9 months
This drawing illustrates
A) Lima's original prefrontal lobotomy. B) Moniz's original prefrontal lobotomy. C) a transorbital prefrontal lobotomy. D) both A and B E) both B and C