Rationale: The theme of Biology 20 and 30 is how the body maintains homeostasis, or metabolic equilibrium. Students have certainly been introduced to the idea of systems in previous courses, however this course examines the human body as a system, making learning much less abstract. Students will understand that the human body system maintaining homeostasis requires the movement of energy and matter through the system. Students will understand that each the circulatory and the immune systems have unique ways of maintaining homeostasis, but also have ways of working together to meet this goal. This unit prepares students for further study of the functioning of human systems.

Transferable Understandings: Energy, Equilibrium, Matter and Systems, Cycles