Earth &

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Across
  1. 5. relationships of animals & environment
  2. 6. one benefits but not the other
  3. 7. G1, S, G2
  4. 10. has 80 bones in its division
  5. 13. cytoplasm dividing
  6. 14. accessory organs to help digest food
  7. 15. cells dividing
Down
  1. 1. both organisms benefit
  2. 2. system of muscles
  3. 3. salivary enzyme
  4. 4. enzyme in the stomach
  5. 8. first stage of mitosis
  6. 9. breaking down food & absorbing nutrients
  7. 11. one benefits the other is not harmed
  8. 12. smallest living unit of an organism