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

a.
veins

b.
arteries

c.
heart

d.
capillaries

C, the heart. The heart is a super muscle that is controlled involuntarily by the brain and beats at a medium rate. with each beat the heart pulls blood in and out of arteries, which then rushes through the arteries and into veins. The veins the pass the blood cells containing oxygen past muscles containing cells that need the oxygen to function, and the cycle repeats.

The answer is C. heart , hope this helps !:-)

1.) They store chemical energy in carbohydrate food molecules they build themselves. Food is chemical energy stored in organic molecules. most autotrophs transform sunlight to make food, we call the process they use Photosynthesis. 2.) Consumers 3.) Heterotrophs cannot make their own food, so they must eat or absorb it. 4.) Consumers include all animals and fungi and many protists and bacteria.