Across
- 4. removal of digested food
- 5. substance that protects the stomach lining
- 6. Part of respiratory tract with rings of cartilage
- 9. place where fats get digested
- 10. entry point of food
- 11. a juice produced by liver
Down
- 1. process of taking in food
- 2. a place where proteins are digested
- 3. process of taking in O2
- 7. ballon-like part of lungs
- 8. A life process