Biology 5090 · O Level · Energy flow

Energy flow — practice question

The graph illustrates how the populations of plant and animal plankton in a lake change over time. With reference to the information shown on the graph, consider this statement: 'Population changes in animal plankton lag behind similar changes in plant plankton because the animals feed on the plants.' Which category does this statement belong to?

  • AIt is a reasonable interpretation of the data.
  • BIt is a restatement of the data, not an interpretation.
  • CIt is contradicted or not supported by the data.
  • DMore data are required in order for this interpretation to be made.

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