Ecosystems and Earth's Spheres

Edit Answers
12345678910111213141516171819
Across
  1. 4. The solid, rocky part of Earth
  2. 6. Living parts of an ecosystem
  3. 8. All living things on Earth
  4. 9. One benefits, the other is not affected
  5. 12. Organism that eats other organisms
  6. 13. The role a species plays in its environment
  7. 15. All the water on Earth
  8. 18. One animal hunts and eats another
  9. 19. Study of relationships between living things and their environment
Down
  1. 1. Animal that eats dead animals
  2. 2. The layer of gases around Earth
  3. 3. Organism that makes its own food
  4. 5. Two or more species needing the same resource
  5. 6. A large region with a specific climate and life
  6. 7. Non-living parts of an ecosystem
  7. 10. Both species benefit
  8. 11. When things rely on each other to survive
  9. 14. One benefits, the other is harmed
  10. 16. The place where an organism lives
  11. 17. Breaks down dead things into nutrients