Final answer:
The cardiovascular system consists of the heart, blood vessels, and blood, while the immune system includes the spleen, tonsils, thymus, and bone marrow. The two systems work closely together to maintain the overall health of the body.
Step-by-step explanation:
The cardiovascular system is the organ system that transports materials to and from all the cells of the body. It consists of the heart, blood vessels, and blood.
The heart and blood vessels are components of the cardiovascular system. The heart is a muscular organ that pumps blood through the blood vessels by repeated, rhythmic contractions.
The spleen, tonsils, thymus, and bone marrow are components of the immune system. While the immune system is not directly part of the cardiovascular system, it works closely with it to defend the body against infections and diseases.