In the late Devonian era,the seas began to recede and the land became more fertile.These environmental changes resulted in the emergence of land-dwelling vertebrates.Some animals are better able to survive and reproduce under changing environmental conditions.This is an example of:

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Natural selection is the process by which certain traits or characteristics become more or less common within a population based on their ability to help individuals survive and reproduce in a particular environment. In this case, the emergence of land-dwelling vertebrates during the late Devonian era was likely due to natural selection favoring those individuals who were better adapted to the changing environment.

In the Late Devonian Era,the Seas Began to Recede and the Land