Dissolved Oxygen in Aquatic Ecosystems

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Across
  1. 4. is needed in order to complete the process of photosynthesis
  2. 7. an important factor for dissolved oxygen in aquatic ecosystems
  3. 10. the DO in water is ___ bonded to any other molecule
  4. 11. the process where breaking down something to organic matter
  5. 13. percentage of the amount of DO that is available in saltwater ecosystems versus freshwater ecosystems
  6. 14. dissolved oxygen come into and out of an aquatic ecosystems by this source
Down
  1. 1. ____ temperature causes decreased DO
  2. 2. the action of water which increases the amount of dissolved oxgyen
  3. 3. producers use sunlight to synthesize food from carbon dioxide and water while generating oxygen as a by-product.
  4. 5. increased salinity causes _____ DO
  5. 6. is one molecule needed in the process of photosynthesis
  6. 8. besides glucose, what else is made during photosynthesis
  7. 9. the energy that is made during the process that occurs in cells of all organisms
  8. 12. One factor the causes a fluctuation of dissolved oxygen levels in aquatic ecosystems