This Human Body Systems Graphic Organizer allows your students to record what they have learned about each human body system. The human body is a biological machine composed of body systems, which are groups of organs collaborating to create and sustain life. We can sometimes get lost while studying cells and molecules and fail to see the forest for the trees. This Human Body Systems Graphic Organizer will give you a quick overview of the human body's systems so that every organ you learn later will add a superstructure to the basic concept you adopt here.