🧬ap biology review

Theory of Evolution

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The Theory of Evolution is a scientific theory that describes how species change over time due to processes like mutation, non-random mating, gene flow, genetic drift, and natural selection.

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