1. Evolution Access

: The movement of genes between different populations through migration and interbreeding. Scale and Patterns

: Organisms with traits better suited to their environment are more likely to survive and reproduce, passing those advantageous genes to their offspring. 1. Evolution

Evolution is driven by four primary mechanisms that alter the genetic makeup of populations: : The movement of genes between different populations

Evolution is the gradual process of biological change in a population's inherited traits across successive generations. It is often described as "descent with modification," where all life on Earth is linked by a shared ancestry that has diversified over billions of years. Core Mechanisms of Evolution It is often described as "descent with modification,"

: Random chance events (like a natural disaster) can abruptly change which traits are passed down by removing certain individuals from the population.

: Random changes in genetic material create new variations. While many mutations are neutral or harmful, some provide benefits that natural selection can then act upon.