Across
- 4. system supports the body, protects organs, allows movement, and makes blood cells.
- 6. system takes in oxygen and releases carbon dioxide as we breathe.
- 7. system delivers nutrients and oxygen to all cells in the body.
Down
- 1. system removes liquid wastes from the body.
- 2. system breaks down food into essential nutrients and expels solid waste from the body.
- 3. system moves bones, causes the heart to beat, and moves food through the digestive system.
- 5. system controls body movement and coordinates communication between the brain and the environment.