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5 Written questions

5 Matching questions

  1. mutualism
  2. fundamental niche
  3. biomagnification
  4. nitrogen fixation
  5. lichens
  1. a pioneer organisms, settle uninhabitable area and decomposes rocks to turn to soil, later lose to immigrants
  2. b process where concentration of toxic substances increase in each successive length in food chain.
  3. c no competition
  4. d (nitrogen cycle step 1) conversion of atmospheric nitrogen into compounds (ammonium)
  5. e relationship where both species benefit

5 Multiple choice questions

  1. (nitrogen cycle step 2) bacteria in soil convert ammonium (NH4+) to nitrate or NO3.
  2. smaller regions in ecosystems that share similar physical features
  3. organisms that are capable of interbreeding with 1 another but unable to with other species
  4. the amount of time a resource spends in a reservoir or an exchange pool
  5. where animals and plants breathe and give off CO2 from cellular metabolism

5 True/False questions

  1. primary successionecological succession begins in a near lifeless area


  2. keystone speciesa species whose presence contributes to ecosystem's diversity and whose extinction would destroy other life forms


  3. tertiary consumersorganisms that consume secondary consumers or other tertiary consumers


  4. ecotoneswhere 2 ecosystems meet


  5. parasitism1 species feeds off another


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