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5 Written Questions

5 Matching Questions

  1. tertiary consumers
  2. ecological succession
  3. edge effect
  4. nitrification
  5. pioneer species
  1. a organisms in first stage of succession
  2. b transition in species composition of a biological community, usually by a disturbance in community.
  3. c (nitrogen cycle step 2) bacteria in soil convert ammonium (NH4+) to nitrate or NO3.
  4. d there is a greater species diversity and biological density than in the center of the ecological community
  5. e organisms that consume secondary consumers or other tertiary consumers

5 Multiple Choice Questions

  1. production of ammonia or ammonium compounds in the decomposition of organic matter by bacteria
  2. total sum of species' use of resources in environment
  3. the amount of time a resource spends in a reservoir or an exchange pool
  4. accumulation of a substance in various tissues of a living organism
  5. burning

5 True/False Questions

  1. biomagnificationprocess where concentration of toxic substances increase in each successive length in food chain.


  2. gause's principleno 2 species can occupy same niche at same time


  3. nitrogen fixation(nitrogen cycle step 2) bacteria in soil convert ammonium (NH4+) to nitrate or NO3.


  4. parasitism1 species feeds off another


  5. speciesorganisms that are capable of interbreeding with 1 another but unable to with other species


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