The main source of energy in an ecosystem is .........

  • A
    Sun
  • B
    Earth's crust
  • C
    Plants
  • D
    All of the above

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The amount of stored energy is highest in .........

The average trophic efficiency of transfer of energy from one trophic level to the higher trophic level is called

The transfer of energy from organisms to organisms in a natural community establishes

Plants capture $............ \%$ of photosynthetically active radiation $(PAR)$.

Energy requirement for maintenance of body . . . . . . with successively higher trophic level.

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