Clownfish are well adapted to living in coral reefs. Which feature of clownfish shows this?

Clownfish live among sea anemones on coral reefs. A special mucus coating protects them from the anemones’ stinging cells, allowing them to use the anemones for shelter. This makes immunity to poisonous anemones the feature that shows their adaptation to coral reefs; surviving great depths or cold is not relevant to this habitat.

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