1. which “reward system” is responsible for creating feelings of pleasure?
limbic system
nervous system
digestive system
circulatory system
2. which neurotransmitter is released when the brain’s “reward system” is activated?
dopamine
serotonin
norepinephrine
epinephrine
3. according to pet scan results, what do cocaine addicts process less efficiently?
glucose
protein
carbohydrates
sucrose

Ryan is a nine-year-old boy whose father wants him to be a soccer player. ryan does not have an aptitude for soccer, and keeps failing miserably at it. his father criticizes him in an attempt to motivate ryan to play better. as per erickson’s psychosocial theory, what is a likely consequence of this criticism? a. ryan may start developing an interest in soccer. b. ryan may develop a respect for his father. c. ryan may develop an inferiority complex. d. ryan may excel at soccer. e. ryan may gain self-esteem.

Identify two ethical principles that can teens deal with difficult decisions

When lifting heavy loads off the ground, the majority of the weight should be lifted by which of the following? a. arms b. legs c. back d. stomach