As Part of Your Biological Psychology Class, You Conduct an Experiment

Multiple Choice

As part of your biological psychology class, you conduct an experiment in which a rat's brain is continuously infused with a hormone called ghrelin. Based on what you've learned about ghrelin in your psychology text, you predict that the rat will:

A) display negative energy balance and lose weight gradually.
B) develop a huge appetite and gain weight.
C) lose its appetite and stop eating altogether.
D) display a significant decrease in its body mass index.