The site of many mental processes that are unique to humans (self-awareness, initiative, planning ability, and goal-directed behavior) is the __________

In all of its forms, meditation suppresses activity of the ______ system

a. central nervous c. parasympathetic nervous b. sympathetic nervous d. endocrine

"Crack" cocaine is commonly preferred by cocaine addicts over intranasal use of cocaine because "crack"

a. achieves higher concentrations of cocaine in the brain more rapidly b. is less toxic to the body than intranasal cocaine c. induces less severe side effects than intranasal cocaine d. all of the above