Sleep stages are defined in terms of the . A. amount of time spent sleeping B. length of restful sleep experienced C. occurrence of brainwave patterns D. number of dreams experienced

According to the article, when our sleep/wake cycle breaks down, we are at an increased risk for all but which select one: a. respiratory illnesses b. dementia c. diabetes d. heart disease

Practice or pre-exercise theories of play pose the idea that a. play provides children with an opportunity to practice adult activities. b. play is necessary to reenergize human cognition. c. children have too much energy and play will rid them of that energy. d. children are the link between animals and human beings.

Bloodborn pathogens are infectious microorganisms carried by what?