Cycling In Ecosystems

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Across
  1. 2. level steps in a food chain
  2. 7. found in all living things
  3. 9. matter in ecosystems are __________. (hint:energy only flows one way)
  4. 12. process plants use to make oxygen and glucose
  5. 13. used by plants to grow
  6. 14. energy made from glucose and oxygen in the mitochondria
  7. 15. amount of energy consumed at each trophic level
  8. 16. shows relative amounts of energy or matter contained in each trophic level
  9. 17. where cellular respiration takes place
  10. 19. process cells use to make oxygen and glucose
  11. 20. what carnivores eat
  12. 21. formed from dead animals and plants
  13. 24. also called autotrophs
  14. 25. the way energy flows
Down
  1. 1. where photosynthesis takes place
  2. 2. eats secondary consumer
  3. 3. cloud formation
  4. 4. eats the herbivores
  5. 5. the transfer of energy from one organism to another
  6. 6. bacteria turn nitrogen into this but plants cannot use it
  7. 8. breaks down dead organism
  8. 10. also called herbivore
  9. 11. used by plants for photosynthesis
  10. 18. sugar made by photosynthesis
  11. 22. source of all energy
  12. 23. interconnected food chains