____________ rhythms reflect the adaptation of organisms to the many changes associated with the rotation of the earth on its axis

If you have ever been without a screwdriver and took a dime out of your pocket and used it to loosen a screw, then you did not let which of the following be a barrier to your thinking?

a. animism b. functional fixedness c. inhibition d. disjunctive thinking

Many of the addictive drugs activate the same pleasure centers as are activated by food and sex. Many of these pleasure centers are located in the

a. hypothalamus. b. medulla. c. cerebellum. d. corpus callosum.