Freshwater and Marine Ecosystems

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Across
  1. 4. A freshwater ecosystem that does not have flow, lake.
  2. 7. An area where a freshwater river meets the ocean.
  3. 11. Stream ecosystem that changes over the length of the river.
  4. 12. Young lakes that have a low nutrient count.
  5. 13. A freshwater ecosystem that has flow, river.
  6. 14. Ecosystem found in glaciated regions. Which is characterized by wet, spongy, poorly drained peat-rich soil.
Down
  1. 1. Body of saltwater that covers 71% of the Earth's surface
  2. 2. Steep temperature gradient with much warmer water on top and cold beneath.
  3. 3. Ecosystem that is usually flooded with wood plants like Cypress Trees.
  4. 5. Temperature of lake becomes constant by mixing water.
  5. 6. Underwater marine ecosystem formed of colonies of coral polyps held together by calcium carbonate.
  6. 7. Older lakes with high amounts of nutrients.
  7. 8. Ecosystem between freshwater and land that is semi-aquatic.
  8. 9. Ecosystem with shallow water with soft-stemmed plants, usually flooded.
  9. 10. Microscopic organisms that are the base for marine food webs