Across
- 1. groups of organs that work together to perform a specific job
- 7. system that exchanges oxygen and carbon dioxide between the blood and air
- 8. system that protects, regulates temperature and removes waste
- 10. system that helps red blood cells transport oxygen and carbon dioxide
- 12. groups of tissues that work together to do a job
Down
- 2. system that regulates hormones
- 3. system that breaks down food and absorbs nutrients
- 4. system that allows body movement
- 5. system that protects, supports, and makes blood cells
- 6. process by which the body's internal environment is kept stable
- 9. groups of cells working together to do a job
- 11. system that cleans blood and removes liquid waste