Approximately what percent of American high school students attend public schools?

The body's warning system

a. signals that the body has been, or is about to be damaged. b. is carried by small nerve fibers. c. involves pain that is nagging, widespread, and extremely unpleasant. d. involves all of these characteristics.

Through their experiments, Fritsch and Hitzig showed that ______.

A. movement could be produced in an animal by providing electrical current to the brain B. the rate of nerve conduction is about 90 feet per second C. the left hemisphere controls speech D. sensation is the result of electrical activity in the brain