Across
- 4. the inside of the nose
- 5. section of the heart
- 7. the exchange of carbon dioxide with oxygen (in lungs)
- 10. the storage room for water in a plant cell
- 12. make an exchange in the lungs
- 15. the wall that separates the right side of the heart with the left side
Down
- 1. the exchange of oxygen and carbon dioxide (in the body)
- 2. blood vessels that take blood away from the heart
- 3. looked at a cork under a microscope and saw cells
- 6. the wind pipe
- 8. the thing that lets us speak
- 9. what the heart is made of
- 11. pumps blood
- 13. have alveoli and bronchi inside
- 14. blood vessels that take blood to the heart