Smaller islands at equilibrium contain fewer species than larger islands at equilibrium because smaller islands have B) greater extinction.
In smaller islands, the species of a population will not be as diversified as that of a larger island. Hence, when there is lesser diversification, the chances of extinction are higher based on Darwin's theory.
At equilibrium, there will be no species entering or exiting from a population. In such circumstances, there will be competition for resources and there will be greater levels of extinction as there is lesser diversity in smaller islands. Hence, option B) greater extinction is correct.
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