The Immune System

How does structure facilitate function?
The layered, expansive structure of the immune system facilitates its function to protect the body. The immune system is a group of cells, molecules, and organs that act together to defend the body against foreign invaders that may cause disease, such as bacteria, viruses, and fungi (Starr 582). The health of the body is dependent on the immune system's ability to recognize and then repel or destroy these invaders.…