Mass of living matter at a trophic level in an area at any time is called

  • A
    standing crop
  • B
    detritus
  • C
    humus
  • D
    standing state

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How much portion of the Photosynthetically Active Radiation $(PAR)$ is captured by the plants (in $2-10\%$)?

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$(R)$ Third trophic level$(III)$ Phytoplankton,Grass,Trees
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