Across
- 2. something capable of living
- 4. help to maintain homeostasis
- 5. chemical substances in food
- 6. releasing of chemicals
- 8. producing new offspring
- 9. removal of wastes
- 14. one parent
- 16. study of life
- 17. materials enter and leaves cells
- 18. combining substances to make more
Down
- 1. breakdown of food
- 3. involves two parents
- 7. maintaining internal environment
- 10. material converted to something else
- 11. getting rid of undigested food
- 12. involves all chemical reactions
- 13. taking in of food
- 15. increase in size