1. Plants 2. Devonian Period (517-354 MYA) 3. Plant Proliferation Plants began spreading beyond the wetlands during the Devonian, with new types developing that could survive…

1. This is called the Pre-Cambrian period and is the earliest geological period. It is, of course, difficult to be sure what was happening so long ago but scientific research…

Slide 1 Slide 2 Slide 3 Alfred Wegener & Continental Drift Slide 4 Dark Brown = evidence of one connected Slide 5 In 1915, the German geologist and meteorologist Alfred…

Slide 1 1 Biodiversity: Preserving Species Slide 2 2 Outline Biodiversity and the Species Concept  Varied Definitions Benefits of Biodiversity Threats to Biodiversity…

Slide 1 Rocks, Resources and Scenery Types of rock Slide 2 Geological Time Geological time is on a different scale from human time. Chalk was formed during the Cretaceous…

Slide 1 Spaceship Earth An Ever Changing World Slide 2 The half-Earth as seen by Mars Global Surveyor. An overlay shows the continents North and South America at the time…

Slide 1 Slide 2  The Permian is a geologic period and system characterized among land vertebrates by the diversification of the early amniotes into the ancestral groups…

Slide 1 CHAPTER 20 HISTORY OF THE VERTEBRATES Slide 2 THE PALEOZOIC ERA Scientists divide the earth’s past into different time periods. Large blocks of time are called…

Slide 1 Geologic Time Jeopardy $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 The Dating Game Mass Extinctions Time. Period. Fossils Wild Card FINAL ROUND Slide…

Slide 1 Big on Biology No Bone About It 9-12 Science Std: Bio 8e Slide 2 We have talked about Biodiversity Interspecies Diversity Many different species Increases stability…