What structure provides nutrients from the mother to the fetus, takes waste products away from the fetus, and protects the fetus from bacteria and waste in the mother's blood?
a. the placenta
b. the umbilical cord
c. the amnion
d. the germinal structure
Answer: A
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Which of the following situational traits would describe a job with the highest level of stress?
a. low decisional control with low psychological demands b. low decisional control with high psychological demands c. high decisional control with low psychological demands d. high decisional control with high psychological demands
When we standardize paired data we
a. divide everything by the standard deviation of X. b. convert X to a T score. c. convert both X and Y to z scores. d. subtract the mean from each value of X and Y.
The major problem facing Medicare involves a. the lack of skilled nursing facilities
b. a refusal by the government to fund via a payroll tax. c. rising healthcare costs. d. the increasing age of retirement.
According to critics of the five factor model of personality,
A. knowing how sociable a person is allows for a better prediction of behavior than knowing how extraverted that person is. B. researchers need to use factor analysis in order to determine the number of basic personality factors. C. although Extraversion is a basic personality factor, there is no evidence that Neuroticism is. D. factor analytic researchers should all use the same personality tests so that they can produce the same results.