Primary Productivity and Standing Crop Quiz
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Questions and Answers

What does primary productivity measure?

  • Rate of energy loss in a food chain
  • Rate of energy capture and conversion in photosynthesis or chemosynthesis (correct)
  • Rate of energy consumption in an ecosystem
  • Rate of energy transfer between trophic levels
  • What is the difference between GPP and NPP?

  • GPP is the energy available in an ecosystem, NPP is the energy consumed by consumers
  • GPP is the energy assimilated by producers, NPP is the energy lost through respiration
  • GPP is the total energy captured by producers, NPP is the energy assimilated and converted into producer biomass (correct)
  • GPP is the energy converted into chemical bonds, NPP is the energy captured by producers
  • What is standing crop in an ecosystem?

  • The energy converted into chemical bonds by photosynthesis
  • The total energy captured by producers in an ecosystem
  • The biomass of producers present in a given area at a particular moment in time (correct)
  • The energy assimilated by producers in a given area
  • In an ecosystem with high primary productivity, what can be said about the standing crop?

    <p>It may or may not be high</p> Signup and view all the answers

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