Answer:
The heart
Step-by-step explanation:
Because The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. Blood provides the body with oxygen and nutrients, as well as assisting in the removal of metabolic wastes. In humans, the heart is located between the lungs, in the middle compartment of the chest. Its what keeps everyone alive and going. Your heart will beat about 115,000 times each day. Your heart pumps about 2,000 gallons of blood every day.