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5 Written questions

5 Matching questions

  1. headwater
  2. abyssal zone
  3. benthic zone
  4. coral reefs
  5. zooxanthellae
  1. a 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. b water in rivers and streams flows in one direction, beginning at a source called
  3. c area along the ocean floor that consists of sand, silt, and dead organisms
  4. d deepest region of the ocean; water is very cold
  5. e form natural barriers along continents that protect shorelines from erosion

5 Multiple choice questions

  1. microoorganisms, sea slugs, octopuses, sea urchins, sea stars, and fishes
  2. nutrient poor lakes, often found in mountains
  3. covered wth water unless the tide is unusually ow
  4. area of intertidal zone that is dry most of the time
  5. widely distributed in warm shallow marine waters

5 True/False questions

  1. sedimentmaterial that is deposited by water, wind or glaciers


  2. high-tide zoneundergoes severe disruption twice a day as tides cover & uncover the shoreline with water


  3. coralsform natural barriers along continents that protect shorelines from erosion


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


  5. wetlandsareas of land such as marshes, swamps and bogs that are saturated with water and that suport aquatic plants


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