The highly addictive depressants of opium, morphine codeine, and heroin are classified as __________

Glasses used to watch 3D movies are based on the principle of

a. binocular cues. b. monocular cues. c. opponent process. d. agnosia.

What is the first stage of the General Adaptation Syndrome?

a. ?resistance b. ?alarm reaction c. ?exhaustion d. ?heightened confusion