Delaware Barbering Practice Exam

The other options are incorrect because they refer to other systems in the body. The respiratory system is responsible for breathing and oxygen exchange, the digestive system is responsible for breaking down food and absorbing nutrients, and the nervous system is responsible for transmitting signals between different parts of the body. However, the heart, arteries, capillaries, and veins are all part of the blood-vascular system which is responsible for circulating blood and transporting oxygen, nutrients, and waste products throughout the body.