Across
- 2. Have no teeth but use their beaks instead
- 5. Circulates materials through the body
- 8. the digestive structure that absorbs useful parts of the food
- 10. Pump made of muscles
- 11. Have blue blood
- 12. Take in water through their skin
- 13. Carry blood back to the heart
Down
- 1. Has mouth parts shaped like scissors
- 3. Balloon like structures that take in air and release waste
- 4. Process of breaking down food
- 6. Moves materials through animal's bodies
- 7. Digestive structure lined with muscles that stir the food and mix it with more digestive juices
- 9. removes water from the undigested food