What is the best way to prevent an STD? A.
Only have one partner at a time.
B.
Take a shower after any sexual activity.
C.
Only have sex with an infected partner when the symptoms are gone.
D.
Practice abstinence.

Which of the following statements is true about body composition? a. body composition is the percentage of fat to lean body mass. b. body composition is a measure of one's body weight. c. body composition is a measure of one's essential body fat. d. body composition is not a good indicator of overall health. select the best answer from the choices provided. a

The consists of a mixture of gases and particles, including oxygen, nitrogen, hydrogen, carbon dioxide, water vapor, and dust.

Results from damage to tiny air sacs in the lungs