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Which of the following situations could lead to an adaptive radiation? Select ALL that apply.
An extinction event kills all but a few species in one area.
An archipelago of volcanic islands rises out of the ocean and is gradually colonized by a few organisms from the nearest mainland.
A natural dam breaks, causing a large lake to partially drain and split into several small lakes, each with an isolated population of a fish species that occupied the original large lake.
An invasive species of grass colonizes a previously diverse grassland landscape, out-competing many endemic plant species and homogenizing the landscape.