Natural selection, which explains how life on environment is both unified and diverse, has a common origin and can adapt to a variety of habitats and lifestyles in offsprings.
Individual variation, which refers to how individuals within a community differ from one another. Inheritance, which refers to how many of these variations are genetically inherited. Due to overproduction, which occurs when breeding individuals in a community prefer to generate more offspring than the environment can sustain, individuals in the population are fighting for their own existence. Differential reproductive success, People who are more adapted to their environment have more offspring than people who are less adapted, and as a result, a larger percentage of their fertile offspring will make up the next generation.
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