Chapter 18 Crossword Puzzle

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Across
  1. 6. feeding relationship between organisms
  2. 7. study of organism with their environment
  3. 8. second level - group of similar organisms
  4. 10. consumer that eats animals
  5. 11. largest population a population can have
  6. 12. when two or more in ecosystem share resources
  7. 14. diagram shows ecosystem's loss of energy
  8. 16. organism that eats another organism
  9. 17. organism that uses sunlight to make food
  10. 19. the part of the Earth where life exists
  11. 20. consumer that eats dead plants and animals
  12. 21. example of abiotic item
  13. 23. consumer that eats plants and animals
  14. 25. example of a biotic item
Down
  1. 1. a scarce resource that limits population
  2. 2. organism that breaks down dead organisms
  3. 3. example of producer
  4. 4. feeding pattern of a series of organisms
  5. 5. process of using sunlight to make energy
  6. 9. consumer that eats only plants
  7. 12. third level - group of different populations
  8. 13. all organisms that live together
  9. 14. fourth level - community and abiotic environ
  10. 15. part of the environment that is nonliving
  11. 18. first level of environment
  12. 22. organism that eats
  13. 24. organism that is eaten