Quarter 3 Crossword Puzzle

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Across
  1. 2. element needed with hydrogen to create organic molecules
  2. 7. a system of living things and their environment
  3. 9. diagram that shows how energy moves through an ecosystem
  4. 10. marine animal with spiky skin
  5. 12. a crack in the earth's surface from which water heated by the earth's mantle erupts from
  6. 14. the position that a species occupies in a food web
  7. 18. animal with no backbone or spine
  8. 20. type of mollusk with one outside shell and a radula
  9. 23. method for deep sea creatures to create their own light
  10. 24. type of symmetry that is around a center point like a wheel
  11. 25. name of the algae that coral rely on for food
Down
  1. 1. type of mollusk with two outside shells
  2. 3. stinging tentacles that coral have
  3. 4. type of food source for deep sea creatures that involves whale carcass
  4. 5. organism that gets energy by eating other substances
  5. 6. type of symmetry where you can split the body in half
  6. 8. marine animal with soft skin and a visceral mass
  7. 11. a species that has greater than normal impact on an ecosystem
  8. 13. method for deep sea creatures to make their own food without sunlight
  9. 15. occurs when coral gets to hot or from ocean acidification
  10. 16. level of the food chain where autotrophs make their own food
  11. 17. the animal group (phylum) that jellyfish belong to
  12. 19. type of mollusk with advanced eyesight and intelligence
  13. 21. organism that forms energy from inorganic substances
  14. 22. main source of energy for most autotrophs that don't use chemosynthesis