Funtioning Ecosystem

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Across
  1. 3. Energy transformation is inefficient; some energy is always lost.
  2. 4. Microscopic autotrophs at the base of aquatic food chains.
  3. 7. A step in the feeding pathway in an ecosystem.
  4. 10. Interconnected food chains showing complex feeding.
  5. 12. Always upright; shows energy loss at each trophic level.
  6. 13. Organism that produces its own food using sunlight or chemicals.
  7. 18. Shows the total mass of living matter at each level.
  8. 19. Shows the number of organisms at each level.
  9. 20. Top predator at the end of the food chain.
Down
  1. 1. Tiny consumers that feed on phytoplankton.
  2. 2. Movement of energy through a food chain; starts with sunlight.
  3. 5. Secondary or tertiary consumers in water-based ecosystems.
  4. 6. Relies on other organisms for food.
  5. 8. Herbivore that eats producers (e.g., goat).
  6. 9. Carnivore that eats herbivores (e.g., lion).
  7. 11. Energy can’t be created or destroyed, only changed in form.
  8. 14. Starts the food chain by making food from sunlight.
  9. 15. Eats other organisms for energy.
  10. 16. A linear feeding relationship.
  11. 17. Breaks down dead organisms into nutrients.