Ecosystem lecture review

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Across
  1. 1. The variety of living organisms in an ecosystem.
  2. 3. A place where freshwater meets saltwater.
  3. 6. A strip of vegetation that filters nutrients and sediment before they reach streams.
  4. 7. An organism that filters water and improves water quality.
  5. 8. The area of land that drains into a common river or body of water.
  6. 11. Aquatic organisms that grow rapidly when nutrients are abundant.
Down
  1. 2. A collection of living and non-living components that interact in the same area.
  2. 4. Water that flows over land and carries pollutants into waterways.
  3. 5. A process in which excess nutrients cause algae growth and oxygen depletion.
  4. 9. A condition of low dissolved oxygen in the water.
  5. 10. A structure that provides habitat for oysters and other aquatic organisms.