Which of these is not a part of the body's immune system?
a.) sweat glands
b.) saliva
c.) mucous
d.) tears

Bacteria can cause different infections, check all that apply. a. sore throat b. measles c. ear infection d. flu e. cavities

Victoria enjoys laughing with her friends as they walk around the track after school which best describes her heart rate during this activity

When considering the claim that eating well to reduce stress, what advice might you give a friend who appears to be stressed about an upcoming exam, but chooses to have chips and soda for lunch everyday?