Extinction | Common ancestry and phylogeny | High school biology | Khan Academy

Explore how environmental changes can lead to species extinction, emergence, and the role of common ancestry in phylogeny.

Next Generation Science Standards · High School

HS-LS4-5Evaluate the evidence supporting claims that changes in environmental conditions may result in: (1) increases in the number of individuals of some species, (2) the emergence of new species over time, and (3) the extinction of other species.

science high-school video extinction phylogeny common-ancestry

Extinction | Common ancestry and phylogeny | High school biology | Khan Academy

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