The Roux-en-Y gastric bypass procedure produces weight loss by
a. reducing plasma leptin levels.
b. decreasing plasma ghrelin levels.
c. decreasing plasma PYY levels.
d. increasing plasma PYY levels.
e. increasing plasma CCK levels.
Answer: b. decreasing plasma ghrelin levels.
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Which type of research study would best be used to study the factors that shaped a notorious serial killer?
a. confounding b. case study c. introspection d. naturalistic observation e. experiment
Which of the following statements is the closest representation of the type of preschool environment that you will experience as a preschool teacher in Japan?
The physical building looks to be very new and in good shape, there's a high emphasis on social skills training, and the students of the class are very competitive academically. There is a lot of group play, the children wear the same uniforms, and they each have the same equipment. There is a high emphasis on academic success, parents encourage their children to learn letters and numbers quickly, and many teachers work long hours. The physical building looks run down, teachers appear tired and frustrated, and it is clear that the students do not learn much.