Which mineral is responsible for making muscles contract or relax?
a. boron.
b. magnesium.
c. sodium.
d. calcium

How do your peer relationships affect your overall health status? what can you do to improve your peer relationships?

Which action is important to a pregnant woman’s health? see a doctor for regular x-rays drink alcohol in small amounts engage in regular physical activity eat a diet rich in seafood

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.