By the advent of WWII, there were nearly 200 tests of mental abilities in existence

The chief function of salt-tasting receptors in the mouth appears to be to identify

__________ chloride. a. potassium b. lithium c. sodium d. hydrogen e. bromium

The practice of withdrawing an attractive offer once it has been agreed to is called the

__________ technique. a. door-in-the-face b. low-balling c. foot-in-the-door d. norm of reciprocity e. high-balling