Which of the following is the best evidence that environment must play a role in obesity?
a. The rate of obesity has been rising while the gene pool has remained relatively constant.
b. The recognition that identical twins reared apart have body weights similar to their biological parents.
c. The development of precise body composition methodologies that define adipose storage sites based on gender.
d. The discovery of uncoupling proteins that explain the variations in energy metabolism among lean and overweight people.
e. Adoption studies show that adopted individuals have body mass more similar to their adoptive parents than their birth parents.
Question 2
Which of the following is a characteristic of the body's major types of adipose tissue?
a. Very little brown fat is found in adults, whereas more is seen in infants.
b. White adipose is especially important in infants as a moderator of temperature extremes.
c. The uncoupled reactions in brown and white adipose are the result of LPL-induced hydrolysis of ATP.
d. Among the three types of adipose, namely, white, yellow, and brown, the white adipocytes account for the greatest amount of heat expenditure.
e. White fat in adults is stored mostly around the neck and clavicles.
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