Denna eats nonfood items, such as sand and clay, a feeding and eating disorder known as

_______________ participants in Milgram's study administered shock to the learner

A) Very few B) Most C) None of the D) All of the

In an experiment to test the effects of a new pain killing drug, the control group was given a placebo, which initially reduced their pain because the placebo

a. raised their endorphin levels. b. lowered their endorphin levels. c. activated the neurilemmas in their receptor sites. d. deactivated the neurilemmas in the receptor sites.