Evolution - Natural Selection

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In this live Grade 12 Life Sciences show we take a close look at Evolution - Natural Selection. In this lesson we cover the similarities & differences between natural & artificial selection. We discuss species as a definition as well as look at speciation as a mechanism for producing new species. We look at examples of reproductive isolation mechanisms, discuss different lines of evidence & the contribution of many scientists as well as consider the differences in appearance of organisms within a species due to variations.
Revision Video