Ecosystems and Biogeochemical Cycles

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Across
  1. 3. A diagram that shows how energy decreases at each level.\
  2. 4. Many connected food chains in an ecosystem.
  3. 6. An organism that must eat other organisms for energy.
  4. 7. An organism that eats other organisms.
  5. 8. The regrowth of an ecosystem after a disturbance like a fire.
  6. 10. A plant or algae that makes its own food.
  7. 12. A top predator that eats secondary consumers.
  8. 14. An organism that breaks down dead plants and animals.
  9. 18. A simple path that shows how energy moves from one organism to another.
  10. 20. An animal that only eats plants.
Down
  1. 1. An animal that eats primary consumers.
  2. 2. The process plants use to make food using sunlight.
  3. 5. The growth of an ecosystem in an area with no life before.
  4. 9. Nonliving parts of an environment like sunlight and water.
  5. 11. An animal that eats producers like plants.
  6. 13. A community of living and nonliving things interacting together.
  7. 15. An organism that makes its own food.
  8. 16. An animal that only eats other animals.
  9. 17. Living parts of an ecosystem.
  10. 19. An animal that eats both plants and animals.