AP BIOLOGY

Detailed explanation-1: -One of the key functions of blood is transport. Blood vessels are like networks of roads where deliveries and waste removal take place. Oxygen, nutrients and hormones are delivered around the body in the blood and carbon dioxide and other waste products are removed.

Detailed explanation-2: -Blood brings oxygen and nutrients to all the parts of the body so they can keep working. Blood carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system to be removed from the body.

Detailed explanation-3: -The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.

Detailed explanation-4: -The arteries branch off into smaller and smaller tubes. These bring oxygen and other nutrients to the cells of the body’s tissues and organs. The smallest tubes are called capillaries. As blood moves through the capillaries, the oxygen and other nutrients move out into the cells.