Across
- 1. food materials into simpler forms
- 6. removal these material wastes from organism body
- 8. study of living things
- 9. the act of discharging waste material
- 11. chemical reaction occurring within cells
- 13. releasing chemical energy
- 14. substances enter and leave cells & become distributed
- 16. taking food from its environment
Down
- 2. organisms able to combine simple substances
- 3. substances organisms need fro energy growth and repair
- 4. reproduction 2 parents off spring are identical
- 5. condition of a constant internal environment
- 7. help ,maintain organisms homeostasis
- 10. organism taking materials from its external environment
- 12. living organisms increases in size
- 15. reproduction single individual produces offspring identical to parents
- 17. each living thing