$A$ food chain is a series of populations that starts with producers. It is concerned with:

  • A
    Biotic components only
  • B
    Energy flow and transfer of nutrients
  • C
    Both $(a)$ and $(b)$
  • D
    Abiotic components and decomposers

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The concept of the food chain was introduced by which of the following ecologists?

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"During the transfer of energy from one trophic level to another, some energy is lost as heat." Which law of thermodynamics does this statement represent?

In any ecosystem,at which trophic level is the least amount of energy stored?

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