Which of these body parts provides the force to push blood through the circulatory system?

a.
veins

b.
arteries

c.
heart

d.
capillaries

Which is a contraceptive method that is classified as hormonal birth control?

Taking a foil acid supplement during childhood can prevent illness

Which plan groups foods according to types and indicates how much of each type should be eaten daily for a healthy diet? a. mypyramid plan b. food guide pyramid plan c. dietary guidelines for americans d. dietary pyramid guidelines