Reversibility is a principle of exercise that states that if you don't maintain a regular exercise program, your fitness level will regress. a. true b. false

What are the systems used to describe how information is stored in the brain? list each.

If you feel pain while stretching, you should do any of the following except: a. stretch farther. b. back off the stretch. c. find an alternative. d. stop stretching.

Witch form of birth control could people use without. altering hormonal systems or blocking sperm from fertilizing an egg