The individual nerve cells specialized to carry and process information are called

The wear and tear theories of aging argue that the body constantly manufactures energy and creates ___________, which eventually reach such high levels that they impair the body's normal functioning

a) byproducts b) radiations c) diseases d) toxins

Research on adult education has shown that

a. literacy programs for adults tend to be highly successful. b. older adult college students are more likely to be motivated by external expectations than traditional students. c. adult men tend to return to the classroom for personal enrichment reasons. d. returning adult students often put more effort into learning material because they want or need to use the information.