Science crossword from maher

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Across
  1. 3. Organisms able to make nutrients.
  2. 7. Opposite of prey
  3. 10. Eats animals
  4. 11. Creates food
  5. 12. Something found in human intestines
  6. 13. Organisms require nutrients
  7. 15. 2 different species interact
  8. 18. 2 animals associate with each other.
  9. 19. Pyramid of what type of animals eat
  10. 20. They eat meat.
Down
  1. 1. Plants making food using sources.
  2. 2. Green cells in plants.
  3. 4. Eats both plants and meat
  4. 5. Graphical presentation of population of animals.
  5. 6. They eat plants
  6. 8. Group of antiboitics
  7. 9. What organisms eat.
  8. 14. Breathing.
  9. 16. All food chains
  10. 17. Small things.