Across
- 2. taking in food
- 4. Activity's that help maintain homeostasis
- 5. something capable of living on its own
- 7. all the chemical reactions occuring within a cell
- 9. removal of a organisms metabolic waste
- 10. producing new offspring
- 12. the chemical combining of simple substances
- 15. the process by which organisms take in food
- 18. the action of discharging undigested waste
Down
- 1. involves two parents to produce offspring
- 3. materials enter and leave cells
- 6. Chemical substances in food that a organism needs
- 8. maintaining a constant internal environment
- 11. the process of releasing energy
- 13. The breakdown of food
- 14. the study of life
- 16. increase in size of a organism
- 17. only needs one parent to reproduce