A hypothetical island lies far from any other landmasses.There are many different types of plants,but only one animal-a beetle that can fly or walk from plant to plant and feeds by chewing leaves.Which morphological change would be most likely to trigger an adaptive radiation of the beetles?

Question

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The presence of a mouthpart that can pierce fruits and seeds would allow the beetle to expand its diet beyond just leaves. This new food source could lead to the evolution of new traits and adaptations, triggering an adaptive radiation as the beetles diversify to exploit different plant species and resources. The other options may also be beneficial, but they may not necessarily lead to such a drastic change in the beetle's ecological role and diversification potential.

A Hypothetical Island Lies Far from Any Other Landmasses