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5 Written Questions

5 Matching Questions

  1. primary consumers
  2. keystone species
  3. population
  4. invasive species
  5. denitrification
  1. a organisms that consume producers (plants and algae)
  2. b group of organisms of same species and same area
  3. c a species whose presence contributes to ecosystem's diversity and whose extinction would destroy other life forms
  4. d an introduced, nonnative species
  5. e nitrogen cycle step 4) specialized bacteria convert ammonia to NO3, NO2, AND N2 and releases back to atmosphere

5 Multiple Choice Questions

  1. releasing water vapor through stomata of plants or pores
  2. accumulation of a substance in various tissues of a living organism
  3. pioneer organisms, settle uninhabitable area and decomposes rocks to turn to soil, later lose to immigrants
  4. organism that gets energy by consuming nonliving matter
  5. 10% of energy is transferred from 1 level to the next, 90% given off as heat, respiration, digestion, etc.

5 True/False Questions

  1. producercomplex interrelated food chains

          

  2. fundamental nichewhen a species settles for a smaller niche after battling against another species

          

  3. combustionformed from populations of different species occupying the same geographic area

          

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

          

  5. nichetotal sum of species' use of resources in environment

          

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