A glacier retreats, exposing bare rock and allowing communities of organisms to move in. This is an example of ____.

Question

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This is an example of primary ecological succession, which involves the colonization and establishment of communities in an area where no ecosystem existed before. As the glacial ice melts, it exposes bare rock that gradually accumulates soil and organic material, supporting the growth of new plant and animal species.

A Glacier Retreats, Exposing Bare Rock and Allowing Communities of Organisms