Collett and Marsh (1974) videotaped instances when two people met in a hallway to avoid collision. This type of research is called

The simplest neural network that is organized in the spinal cord is the

a. reflex arc. b. autonomic reflex. c. somatic reflex. d. central synapse.

Which of the following can be smoked, snorted, injected, or eaten; is known by the street names of "bergs" and "glass;" is made cheaply in backyard labs; and has fueled a violent criminal subculture?

a. GHB b. marijuana c. methamphetamine d. MDMA