'Permian triassic extinction' presentation slideshows

Extinction

924 views • 49 slides

Extinctions: The End of Biodiversity

By C Kohn, Waterford, WI. Extinctions: The End of Biodiversity. What is extinction?. Extinctions occur when the last individual of a species dies out. Functional Extinctions occur when individuals remain but the odds of sustainable reproduction are low

321 views • 20 slides

Mass Extinctions

388 views • 12 slides

Ch. 4- Evolution

Ch. 4- Evolution. Evolution (organic)- Change over time Microevolution = A change in the frequency of alleles in populations over time. Macroevolution = Large scale changes (that result in extinction and the formation of new species).

154 views • 6 slides