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5 Written Questions

5 Matching Questions

  1. ecological succession
  2. keystone species
  3. niche
  4. energy pyramid
  5. realized niche
  1. a transition in species composition of a biological community, usually by a disturbance in community.
  2. b a species whose presence contributes to ecosystem's diversity and whose extinction would destroy other life forms
  3. c when a species settles for a smaller niche after battling against another species
  4. d 10% of energy is transferred from 1 level to the next, 90% given off as heat, respiration, digestion, etc.
  5. e total sum of species' use of resources in environment

5 Multiple Choice Questions

  1. organisms that consume producers (plants and algae)
  2. organisms in first stage of succession
  3. organisms that consume secondary consumers or other tertiary consumers
  4. (nitrogen cycle step 2) bacteria in soil convert ammonium (NH4+) to nitrate or NO3.
  5. organisms that are capable of interbreeding with 1 another but unable to with other species

5 True/False Questions

  1. lichenstotal sum of species' use of resources in environment


  2. Net Primary Productivityamount of sugar that plants produce in photosynthesis ------ amount of energy that plant needs for growth, repair, etc.


  3. reservoirwhere animals and plants breathe and give off CO2 from cellular metabolism


  4. populationgroup of organisms of same species and same area


  5. biodiversityorganism that can convert radiant energy or chemical energy to carbs


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