Biology Crossword

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Across
  1. 3. getting rid of undigested food in an organism
  2. 6. combining simple substances to from complex substances
  3. 8. all the chemical reactions
  4. 9. something capable of living on its own
  5. 10. two parents
  6. 13. activities that help control homeostasis
  7. 15. producing new offspring
  8. 17. condition of maintaining a constant internal environment
  9. 18. process by with materials enter or leave cells or get moved around in the organism
Down
  1. 1. removal of wastes
  2. 2. increasing in size of an organism
  3. 4. one parent
  4. 5. the taking in of food
  5. 7. the process or releasing chemical energy from complex reactions
  6. 11. chemical substances in food that an organism needs
  7. 12. the study of life
  8. 14. how an organism takes materials from the environment and con them into something it can use
  9. 16. the breakdown of foods into similar forms