Across
- 4. animals with a backbone
- 8. powerhouse of the cell
- 10. you can live with only one of this
- 14. releasing undigested food
- 15. connects brain to spinal cord
- 16. contains oxygen in the blood
- 17. chewed up food
Down
- 1. the liquids secreted by the digestive system to break down the food
- 2. Using oxygen and releasing energy
- 3. unit of the Nervous System
- 5. secretes bile
- 6. process of plants making food with sunlight and chlorophyll
- 7. taking in oxygen releasing Carbon Dioxide
- 9. Releasing waste
- 11. Breaking down food in our body
- 12. gap separating neurons
- 13. functional unit of the urinary system