The Anasazi a.
built huge burial mounds.
b.
lived in apartment houses in cliffs.
c.
were located in Petén.
d.
were primarily hunter-gatherers.

Drugs have a high potential for abuse. there is no routine therapeutic use for these drugs and they are not available for regular use. they may be obtained for “investigational use only” by applying to the u.s. drug enforcement agency. examples include heroin and lsd. which scheduled drug is this?