The heart is like other muscle in your body in that it grows stronger with use.
A. True
B. False

Write a paragraph about why the respiratory system is important and we need to breathe easily. (guys i really need ) x(

If your emotional energy is low, your attitude will likely a. be more negative. b. not be impacted. c. vary substantially. d. be more positive.

You should never drive a car if you are a.taking cold medication b. suffering from the flu c. drinking alcohol d. all the above