One primary difference between voles that are monogamous and those that are polygamous is __________.
A. the size of the MPA in monogamous males shows more sexual dimorphism
B. the size of the MPA in monogamous males shows less sexual dimorphism
C. polygamous males have more release of prolactin in the MPA
D. polygamous males have more release of progesterone in the MPA
Answer: B
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What is a change in the reproductive system of older men?
A. Delayed erections after age 50 B. Sharp decline in testosterone levels after age 60 C. Absence of nocturnal erections after age 70 D. No more sperm production after age 80
One mechanism by which experience can "get under the skin" is epigenesis, in which
a. experience stabilizes and solidifies the way the brain responds to stress
b. experience leads individuals to associate stressful experiences with certain stimuli through classical conditioning
c. experience modifies chemicals that partially control whether genes are expressed
d. experience causes mutations in genes that control whether other genes are expressed
A set of raw scores has a rectangular shape. The z transformed scores for this set of raw scores has a _________ shape
a. rectangular b. normal (bell-shaped) c. it depends on the number of scores in the distribution d. none of these
Infants are born with many automatic abilities, with the exception of basic math functions and statistical patterns
Indicate whether the statement is true or false.