Which question is most important to biopsychology?

"How does the brain chemistry affect how we act and feel? "

Explanation:

Biopsychology is an area within psychology that seeks to understand how neurotransmitters control our behaviors, activities, personalities, feelings and how it affects our body's biological activities. We can then say that biopsychology is the combination of psychology and neuroscience. In that case, we can say that the most important question for biopsychology is "How does brain chemistry affect how we feel and act?"