Across
- 2. The waste gas produced during respiration.
- 3. Organ that churns food using acid and enzymes.
- 6. Tiny structures in the small intestine that absorb nutrients.
- 7. Tiny air sacs in the lungs where gas exchange takes place
- 8. Tube that connects the throat to the lungs.
- 10. The gas that we take in during breathing.
Down
- 1. The main organ where water is absorbed.
- 4. Organ that produces digestive juices and bile to help digestion.
- 5. A muscle that helps pull air into and push air out of the lungs.
- 9. The first part of the digestive system where food enters.