Which of the following is a possible mechanism by which maternal smoking can influence the baby’s health?

a. Maternal smoking opens blood vessels throughout the body, flooding the placenta.
b. Maternal smoking increases methylation across a wide swath of the genome.
c. Maternal smoking disrupts several aspects of early brain development and leads to loss of neurons later in the pregnancy.
d. Maternal smoking raises carbon monoxide and lowers oxygen levels in the fetus’s bloodstream.


Answer: D

Psychology

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Which of the following is an example of a stressful situation that involves conflict?

a. You can't decide whether to go to Florida or Mexico for spring break. b. You're stuck behind a slow-moving car on a one-lane road. c. You have a term paper due the day after tomorrow that you haven't started yet. d. You just took out a large car loan.

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The Armed Services Vocational Aptitude Test is now administered by computer, allowing adaptive testing. What is adaptive testing?

a. Adaptive testing includes only those items related to the recruit's areas of interest. b. Adaptive testing involves presenting a question of known difficulty and then presenting more or less difficult items depending on whether the item was correctly answered. c. Adaptive testing eliminates sources of bias by generating large numbers of items. d. Adaptive testing reduces the risk of cheating by randomly sampling from a large test bank.

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Calisha and Renata are discussing arsonists. Calisha has been reading the work of a ____ psychologist and believes that fire-setting behavior might be linked to hormonal imbalances. Renata has been reading the work of a ____ psychologist and believes that fire-setting is a behavior that is influenced by other people.?

a. ?developmental; cognitive b. ?developmental; social c. ?biological; cognitive d. ?biological; social

Psychology

Terri finds her five year old son Omar walking back to his room in the middle of the night with a glass of milk in his hand. She is perplexed by the fact that Omar quietly enters his room, sets the glass on his nightstand, and then goes back to bed. What may Omar be experiencing?

A. cataplexy B. nocturia C. bruxism D. somnambulism

Psychology