CROSSWORD

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Across
  1. 4. effect – Trapping of heat by the atmosphere.
  2. 6. - Protein on the surface of cells.
  3. 8. – Allele pair for each characteristic.
  4. 9. - Eats animals.
  5. 11. – Passed on from parents in DNA.
  6. 12. - Type of white blood cell.
  7. 13. - Huge group of single stars, star systems, star clushters, dust, and gas bound together by gravity.
  8. 14. – Center of solar system.
  9. 16. – Grouping organisms based on their common features.
  10. 20. - Organisms that produce food.
  11. 22. - Animal without backbone.
  12. 26. - Organisms that eat each other.
  13. 28. - Mass of organisms.
  14. 29. – Largest groups that living thing.
  15. 30. - Disease cause by micro organisms.
Down
  1. 1. - Eats plants.
  2. 2. – Most spectacular ring of any planet.
  3. 3. - Spread of disease.
  4. 5. – Come from comets or asteroids.
  5. 6. – Chemicals that used to treat bacterial infections.
  6. 7. - A Large cloud of gas.
  7. 10. – Planet that closest to the sun.
  8. 15. - Force of turning object.
  9. 17. - Animal at the ends of food chains.
  10. 18. – Largest and most massive planet.
  11. 19. – Blue planet, atmosphere contains visible clouds.
  12. 21. – Very small living things.
  13. 23. - Difference between living things.
  14. 24. - Most massive stars.
  15. 25. - Located in spiral galaxy
  16. 27. - Push or pull.