unit 1 - terminology

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Across
  1. 3. - increase in the size of an organism
  2. 4. - breakdown of food materials into simpler forms
  3. 7. reproduction - two parents: offspring are not identical to the parent
  4. 9. - the study of life
  5. 12. - involves one parent to produce offspring identical to the parents
  6. 14. - organisms take materials from the environment to convert them into something it can use
  7. 15. - chemical substances in food that an organism needs
  8. 16. - removal of an organism's metabolic wastes
  9. 18. - getting rid of undigested food from the body
Down
  1. 1. - condition of maintaining a constant internal environment
  2. 2. - all the chemical reactions carried on in an organism
  3. 5. - has all the characteristics of life
  4. 6. - process of releasing chemical energy from complex reactions
  5. 8. - materials enter and leave cells/get moved around in the organism
  6. 10. - the taking in of food
  7. 11. - combines simple substances to make them into more complex substances
  8. 13. - they help to maintain homeostasis
  9. 17. reproduction - producing new offspring:can be identical or different from the parents