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