Symptoms of people with multiple sclerosis

A normal heart rate can be between _____________ beats per minute

a. 12 and 20 c. 30 and 60 b. 150 and 180 d. 60 and 100

When the diaphragm __________, the potential space between the two pleural membranes is decreased and air is pulled into airways and lungs

A. expands B. contracts