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Across
  1. 3. Light-capturing autotroph
  2. 4. Organisms that consume other organisms for energy
  3. 8. consumer: Top-level consumer in a food chain
  4. 10. Organisms that obtain energy from sunlight
  5. 13. energy pyramid: Energy pyramid where higher trophic levels have more biomass than lower levels
  6. 15. Ecosystem organisms that produce organic compounds
  7. 16. Total mass of living organisms
  8. 17. The capacity to do work
  9. 20. Organisms that consume other organisms
  10. 22. Self-feeding organisms
  11. 23. succession: Ecological succession on barren land
Down
  1. 1. Organisms that obtain energy from chemicals
  2. 2. Plant-like plankton
  3. 5. Eats both plants and animals
  4. 6. Detritus-feeding organism
  5. 7. Meat-eater
  6. 9. Organisms that produce their own food
  7. 11. consumers: Organisms that consume primary consumers
  8. 12. Non-living factors in an ecosystem
  9. 14. Plant-eater
  10. 18. Living factors in an ecosystem
  11. 19. consumer: First level consumer
  12. 21. Organisms that break down dead organisms