In an ecological pyramid,the base always represents the $...A...$ and the apex represents $...B...$. Here,$A$ and $B$ represent:

  • A
    $A-$producers; $B-$top level consumers
  • B
    $A-$top level consumers; $B-$producers
  • C
    $A-$producers; $B-$secondary consumers
  • D
    $A-$producers; $B-$primary consumers

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Assertion : In a food chain, members of successive higher levels are fewer in number.
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