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5 Written questions

5 Matching questions

  1. coral reefs
  2. high-tide zone
  3. photic zone
  4. lakes and ponds
  5. major freshwater ecosystems
  1. a widely distributed in warm shallow marine waters
  2. b under water only during high tides
  3. c also called the euphotic zone
  4. d include ponds, lakes, streams, rivers and wetlands
  5. e divided into 3 zones based on the amount of sunlight that penetrates that water

5 Multiple choice questions

  1. free-floating photosynthetic autotrophs that live in freshwater or marine ecosystems
  2. aquatic environments that are a combination of two or more different environments;
  3. feed by extending tentacles to obtain plankton from the water
  4. covered wth water unless the tide is unusually ow
  5. form natural barriers along continents that protect shorelines from erosion

5 True/False questions

  1. benthic zoneshallow enough that light can penetrate

          

  2. salt marshestransitional ecosystems similar to estuaries

          

  3. zooxanthellaesoft-bodied invertebrates that live in the stonelike structures

          

  4. photic zonebelow the photic zone; where sun is unable to penetrate

          

  5. coralswhere flowing water empties into a larger body of water