Chapter 13 Vocab

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