The sleep–wakefulness cycle is ultimately controlled by the part of the brain called the __________

A form of therapy John and Kate perform is working up the ladder to stimulate each other in a nonsexual way. This helps them to be more sensitive to each others touch. This is called _______________.

Fill in the blank(s) with the appropriate word(s).

The part of the autonomic nervous system primarily responsible for our "emergency" or "alarm" response to stress is the a. parasympathetic nervous system. b. sympathetic nervous system

c. endocrine system. d. cortex.