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5 Written questions

5 Matching questions

  1. low-tide zone
  2. coral reef animals
  3. coral reefs
  4. estuaries
  5. major freshwater ecosystems
  1. a covered wth water unless the tide is unusually ow
  2. b microoorganisms, sea slugs, octopuses, sea urchins, sea stars, and fishes
  3. c an ecosystem that is formed where freshwater form a river or a stream merges with salt water from the ocean
  4. d form natural barriers along continents that protect shorelines from erosion
  5. e include ponds, lakes, streams, rivers and wetlands

5 Multiple choice questions

  1. divided into 3 zones based on the amount of sunlight that penetrates that water
  2. dominant organism in coral reefs
  3. freshwater
  4. divided into vertical zones: low-tide zone, mid-tide zone, high-tide zone, spray zone
  5. remains on constant darkness and generall y is cold, but has thermal layering with a mixing of warm and cold ocean currents

5 True/False questions

  1. coral reefssoft-bodied invertebrates that live in the stonelike structures


  2. abyssal zoneorganisms in this zone rely on food materials that drift down from the zones above


  3. photic zoneorganisms that depend on light cannot live in this zone


  4. spray zonearea of intertidal zone that is dry most of the time


  5. abyssal zonedeepest region of the ocean; water is very cold


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