19. Crossword

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Across
  1. 4. One organism benefits, while the other is unaffected
  2. 6. An organism obtains energy by producing its own food
  3. 7. An organism produces its food itself
  4. 8. An organism that eats only plants
  5. 10. A diploid cell splits into four haploid cells
Down
  1. 1. A nonliving factor that shapes an ecosystem
  2. 2. Both organisms benefit
  3. 3. An organism obtains energy from other organisms
  4. 5. The role of an organism within its ecosystem
  5. 9. An organism that eats both plants and animals