22 POINTS ! Pick a body function that requires at least two different organ systems to perform. The function can be involuntary or voluntary. Design a model that shows how these systems work together. You may want to localize the function to a specific body part. For example, running involves many muscles and bones, which may make it difficult to model. However, you can focus on a specific motion for running, such as bending the knee joint. In a paragraph, explain why it requires at least two body systems to perform the function you selected.

What are the strengths of your model?

Use your model to explain why cells are the building blocks for human bodies.

Pick one of the body parts shown in your model. How would a disease or injury to this organ affect the process you modeled? How would it affect the body as a whole?