Biology 5090 · O Level · Energy flow

Energy flow — practice question

In a tree, insect larvae tunnel through its leaves. The insects that emerge are then consumed by birds, and parasitic fleas live among the birds’ feathers. For this food chain, which pyramid represents biomass and which pyramid represents numbers?

  • Apyramid of biomass: 1, pyramid of numbers: 3
  • Bpyramid of biomass: 1, pyramid of numbers: 4
  • Cpyramid of biomass: 2, pyramid of numbers: 3
  • Dpyramid of biomass: 2, pyramid of numbers: 4

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