What does research on sensitivity to alcohol suggest?
a) Different races seem to vary in their sensitivity to alcohol.
b) The apparent variation in individual levels of sensitivity to alcohol is
psychological.
c) The only system in the body that is affected directly by alcohol is the
central nervous system.
d) Facial flushing, raised body temperature, and rapid pulse are signs of an acquired allergic reaction to alcohol.
a
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_____ is a fear of unknown people common in infants at about 6 months and increasing in intensity until about 12 months, and then declining in the second year
a) Stranger anxiety b) The difficult temperament c) An insecure attachment d) Separation anxiety
Soon after the first birthday, children commonly engage in
a. cooperative play. c. parallel play. b. pretend play. d. role-playing.
Which of the following regulates the expression of SRY?
A) tra B) DHT C) Sox 9 D) MIS
What are major teratogens that can harm a fetus during the fetal period?
A. lack of maternal sleep and lack of exercise B. excessive maternal weight gain and maternal age C. malnutrition and tobacco D. sugar and starch