Viewed under a microscope, the nervous system is a large network of about 100 billion interlinked nerve cells, or

Compared to homogeneous groups of above-average students, heterogeneous groups

A) often engage in poorer-quality interaction. B) progress at a slower pace. C) get more drill on basic facts and skills. D) engage in less discussion.

Electroconvulsive therapy

a) is highly effective in treating depression, especially depression with psychotic features. b) is so risky that it is only reserved for people who are actively suicidal. c) is no longer used in the treatment of depression. d) is usually recommended if a person does not respond to SSRIs in the second week of treatment.