The ____ diamond in the four-diamond hazard placard warning system is for reactivity.

Which muscle is the antagonistic muscle of trapezius?

a. Serratus anterior b. Pectoralis major c. Pectoralis minor d. Both a and c

According to the Controlled Substances Act of 1970, heroin is a Schedule 1 drug, meaning that it:

a. has a low abuse potential. b. has no accepted medical indications. c. may lead to limited psychological and/or physical dependence. d. has a low physical, but high psychological, dependence potential.