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5 Written questions

5 Matching questions

  1. benthic zone
  2. oligotrophich
  3. photic zone
  4. zooxanthellae
  5. aphotic zone
  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 many species of fishes, octopuses and squids live in this zone
  3. c nutrient poor lakes, often found in mountains
  4. d animals living here include may species of fish, sea turtles, jellyfish, whales and dolphins
  5. e organisms that depend on light cannot live in this zone

5 Multiple choice questions

  1. places of transition - from fresh to salt water and from land to sea
  2. deepest areas of a large lake
  3. area to a depth of about 200M of the pelagic zone
  4. grouped based on abiotic factors such as water flow, distance from shore, salinity and latitude
  5. part of pelagic zone

5 True/False questions

  1. coral reefsfeed by extending tentacles to obtain plankton from the water


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


  3. 2.5 percent of Earth's waterfreshwater


  4. spray zonearea of lakes/ponds closest to the shore


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