Which mineral is responsible for making muscles contract or relax? a. boron b. magnesium c. sodium d. calcium
it's not magnesium.

Should basketball replace baseball as americans national pastime?

Which of the following is not an internal factor of decision making? a. ethics b. emotions c. peer pressure d. attitude

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.