Populations and species change over time. Is it natural selection? Or something else? If the changes have to do with individual variation, heritable traits, and a reproductive advantage conferred by those traits, it's probably natural selection!

Learn more about the whats, whys, and hows of natural selection and evolution here: [ Ссылка ]

Find FREE teacher guides, resources, activities and ideas for teaching about natural selection and evolution in high school classrooms here: [ Ссылка ]

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