features and characteristics of life

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Across
  1. 2. the increase in size of an organism
  2. 6. producing new offspring identical to parents
  3. 7. chemical substance in food that an organism needs
  4. 11. taking in of foods
  5. 12. how an organism takes materials from the environment and converts them to something useful
  6. 14. something capable of living on its own
  7. 16. producing new offspring
  8. 17. the study of life
  9. 18. combining simple substances to make a more complex one
Down
  1. 1. involves 2 parents offspring are not identical to parents
  2. 3. involves an activity's that control/coordinate an organism
  3. 4. removal of an organisms metabolic wastes
  4. 5. the breakdown of foods to simpler forms
  5. 8. process by witch materials move around in an organism
  6. 9. gets rid of undigested food from the body
  7. 10. condition of maintaining a constant internal environment
  8. 13. the process of releasing chemical energy for complex reactions
  9. 15. involves all the chemical reactions and activities carried on in an organism