Tight junctions along blood vessels in the brain are formed by:
a. microglial cells.
b. oligodendrocytes.
c. neurons.
d. astrocytes.
Ans: D
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Why is the mean IQ score 100 for both boys and girls?
a. The tests balance the items boys do best with other items that girls do best. b. On average, brain size is equal for boys and girls. c. The test gives boys two "bonus" points to make their average equal to that of girls. d. The test gives girls two "bonus" points to make their average equal to that of boys.
The critical period for brain development is during
a. the late prenatal period and early infancy b. the toddler years c. early childhood d. adolescence
The theory known as _____ posits that traits which help organisms survive and reproduce are more likely to be passed on to subsequent generations.
A) phrenology B) nativism C) natural selection D) functionalism
The hormone oxytocin could be described as being involved in the ______________ response to stress
a. "tend and befriend" b. "fight or flight" c. "cry and ask ‘why'?" d. "avoid and evade"