Based on the information provided about circadian rhythms, many teenagers would do better if high school started at 1 a. m.
6 a. m.
9 a. m.
noon

Which of the following is a true statement? a. the male sex hormone is called estrogen. b. the female sex hormone is called testosterone. c. both sexes manufacture some amount of the sex hormone associated with the opposite sex. d. only males secrete testosterone and only females secrete estrogen

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.

Which area of the brain controls the body's ability to fight off stress? question 1 options: synapse, frontal lobe, dendrite, sympathetic nervous system