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.
