During what stage of birth do the child's umbilical cord, still attached to the neonate, and the placenta expel from the mother's body?
A. fourth
B. second
C. first
D. third
Answer: D
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Why is there a tendency for parents to treat full-term infants better than preterm infants?
a. Full-term infants cry more than preterm infants. b. Preterm infants tend to be less physically attractive and are more irritable. c. Preterm infants demand more interaction time than full-term infants. d. Actually, this is a myth, they do not treat full-term infants better.
Which of the following is a common criticism of social capital as an explanatory concept?
A. lack of clarity of exactly what the term implies B. insufficient research on the link between social capital and health C. irrelevance to local contexts D. all of these
Eric is from a middle-class family. Richard is from a family on welfare. One of the most important differences in these two families that influences their children's school achievement is:
A. language use of their parents B. the availability of computers at home C. the number of siblings D. the mother's employment
If the individuals in a sample have characteristics that are noticeably different from the individuals in the population, then the sample is said to be ____
a. representative b. random c. stratified d. biased