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5 Written questions

4 Matching questions

  1. coral reefs
  2. spray zone
  3. corals
  4. photic zone
  1. a only during high tides that this part of shoreline is sprayed with salt water and few plants & animals are able to live in this environment
  2. b shallow enough that light can penetrate
  3. c form natural barriers along continents that protect shorelines from erosion
  4. d soft-bodied invertebrates that live in the stonelike structures

5 Multiple choice questions

  1. symbiotic relationship coral polyps have with algae; algae provide corals with food & in turn, coral provides protection and access to light for he algae
  2. below the photic zone; where sun is unable to penetrate
  3. areas of land such as marshes, swamps and bogs that are saturated with water and that suport aquatic plants
  4. many species of fishes, octopuses and squids live in this zone
  5. divided into vertical zones: low-tide zone, mid-tide zone, high-tide zone, spray zone

5 True/False questions

  1. planktonfree-floating photosynthetic autotrophs that live in freshwater or marine ecosystems

          

  2. eutropicnutrient rich lakes, found at lower altitudes

          

  3. coralsfeed by extending tentacles to obtain plankton from the water

          

  4. coralsdominant organism in coral reefs

          

  5. limnetic zoneopen water area that is well lit and is dominated by plankton