Question

Overfishing off the New Zealand coast had drastically reduced the populations of fish and lobsters. The fish and lobsters normally eat sea urchins, but with fewer predators, the sea urchin population increased rapidly. How did an increase of sea urchins impact the biodiversity in the region?
- The age structure of the predator fish impacted the sea urchin population.
- Kelp forests that provided shelter for other species were depleted by the sea urchins.
- Fewer lobsters and predator fish decreased other prey species that lived in the region.
- The age structure of the sea urchin population made them more aggressive predators.

Answer 1

The answer is B

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