Mental capacity can be improved as much as 10 to 30 percent as a result of what form of exercise?

Astructural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of: a) smooth muscle b) skeletal muscle c) respiratory cilia d) rings of cartilage

When lifting, where should you bend?

Which is an example of a food group? a. oils b. vegetables c. water d. sweets