Chapter 13 Vocabulary Sections 5 and 6

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Across
  1. 7. Levels of nourishment in a food chain
  2. 9. Circular pathway of oxygen through nature
  3. 11. Sequence that links species by their feeding relationships
  4. 12. Measure of total dry mass of organisms in an area
Down
  1. 1. Circular pathway of water on earth from the atmosphere, to the surface, below ground, and back
  2. 2. Circulation of phosphorous in different forms through nature
  3. 3. Circulation of nitrogen in different forms through nature
  4. 4. Compares biomass of different trophic levels within an ecosystem
  5. 5. Model that shows the complex network of feeding relationships and the flow of energy within an ecosystem
  6. 6. Diagram that compares energy used by producers, primary consumers, and other trophic levels
  7. 8. Movement of a particular chemical through the biological and geological, or living and nonliving, parts of an ecosystem
  8. 10. Circular pathway of carbon through nature in several forms