Natural Selection - is the process by which populations of organisms with variations that help them survive in their environment live longer, compete better, and reproduce more than those that do not have variations., Adaptation - is a characteristic of a species that enables the species to survive in its environment over time., Survival of the fittest - the natural process by which organisms best adjusted to their environment are most successful in surviving and reproducing, Variation - is a slight difference in the appearance of individual members of a species. , Species - is a group of similar organisms that can mate with each other and produce fertile offspring., Competition - the struggle to obtain resources like food, water, shelter, Evolution - change over time, Biodiversity - the variety of life in the world or in a particular habitat or ecosystem., Naturalist - a person who studies the natural world., Population - a group of organisms of the same species that live in an area., Selective Breeding - is the breeding of organisms for desired characteristics.,

Natural Selection

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