Question 1
The brain neurotransmitter that is the stimulus for food intake is
◦ ghrelin.
◦ insulin.
◦ leptin.
◦ neuropeptide Y.
◦ orexin.
Question 2
Energy input equals energy output. This statement reflects the
◦ first law of thermodynamics.
◦ law of mass balance.
◦ second law of thermodynamics.