Natural selection is a key mechanism in the process of evolution, influencing the characteristics and traits of populations over time. Here's a general overview of what happens to a population as natural selection occurs:
Variation: Genetic diversity exists within a population.
Selection Pressures: Environmental factors favor certain traits over others.
Survival and Reproduction: Traits that aid survival and reproduction become more prevalent.
Heritability: Advantages traits are passed on to offspring.
Adaptation: The population becomes better adapted to its environment.
Shift in Population Characteristics: Overall traits of the population change over time.
Speciation (Over a Longer Time Frame): Different populations may evolve into separate species.