Biology 0610 · IGCSE · Food chains and food webs

Food chains and food webs — practice question

The diagram illustrates a food chain in a rock pool. $\text{seaweed} \rightarrow \text{whelks} \rightarrow \text{crabs} \rightarrow \text{seagulls}$ What occurs if the number of secondary consumers rises? The result will be

  • Afewer crabs.
  • Bfewer seagulls.
  • Cfewer whelks.
  • Dless seaweed.

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