Across
- 1. Allows air to pass to and from lungs (windpipe)
- 3. System that removes waste from body
- 4. Heart’s lower chamber
- 6. A group of cells performing the same function
- 7. system that breaks down food
- 9. System that transports substances throughout the body
- 11. Small structures that cover the small intestine
- 13. Lead from bronchi to alveoli
- 15. Heart’s upper chamber
Down
- 2. Tiny sacs of lung tissue
- 5. System that brings oxygen in and Carbon Dioxide out
- 8. Brings air into the lungs
- 10. Smallest unit of life
- 12. Filters blood in kidney
- 14. A group of tissues performing the same function