Dr. Bones has discovered a new hormone called NPZ that he believes directly inhibits the actions of NPY. Which of the following experimental procedures allow Dr. Bones to test his hypothesis?
A)
Inject NPZ into the hypothalamus; if eating increases, his hypothesis is correct.
B)
Inject NPZ into the liver; if eating decreases, his hypothesis is correct.
C)
Inject NPZ into the hypothalamus; if eating decreases, his hypothesis is correct.
D)
Inject NPZ into the liver; if eating increases, his hypothesis is correct.
Answer: C