Chapter 13 Vocab

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Across
  1. 4. Organisms that only eat animals
  2. 5. Major regional or global community of organisms
  3. 7. Organisms that get their energy from nonliving resources
  4. 8. Species that has an unusually large effect on its ecosystem
  5. 9. Organisms that eat both plants and animals
  6. 12. Certain types of bacteria convert gaseous nitrogen into ammonia
  7. 14. Group of different species that live together in one area
  8. 15. Diagram that compares energy used by producers, primary consumers, and other trophic levels
  9. 16. Organisms that eat detritus, or dead organic matter
  10. 17. Cycle Circular pathway of water on earth from the atmosphere, to the surface, below ground, and back (also known as the water cycle)
  11. 18. Levels of the nourishment in a food chain
  12. 19. Cycle Movement of a particular chemical through living and nonliving parts of an ecosystem
  13. 24. Organisms that get energy by eating other living, or once-living resources
  14. 25. Sequence that links species by their feeding relationships
Down
  1. 1. Model that shows the complex network of feeding relationships
  2. 2. All organisms as well as the climate, soil, water, rocks, other nonliving things in a given area
  3. 3. Consumers that have a varying diet
  4. 6. that break down organic matter into simpler compounds
  5. 10. Organisms that only eat plants
  6. 11. Assortment, or variety, of living things in an ecosystem
  7. 13. Producers are called this
  8. 19. Living things
  9. 20. Study of the interactions among living things, and between living things and their surroundings
  10. 21. Consumers are called this
  11. 22. Nonliving
  12. 23. Measure of the total dry mass of an organism in a given way