Which neurotransmitter is responsible for regulating emotional states, aggression, appetite, and sleep onset? question 1 options: a) dopamine b) serotonin c) acetylcholine d) endorphin

What is a common risk associated with tobacco?

Which of the following does not cause blindness? a. cataractsb. glaucomac. osteoarthritisd. diabetes

9. withdrawal occurs when alcohol is removed from the system after the brain a. adapted to the continued presence of alcohol b. become physically saturated with alcohol c. become impervious to the effects of alcohol d. begun to treat alcohol as a poison