1.Chapter 25The History of Life on Earth12. Overview: Lost WorldsPast organisms were very different from those now aliveThe fossil record shows macroevolutionary changes…

Fig. 25-2 Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings Amino acids have also been found in meteorites Copyright © 2008 Pearson…

Objective: Chapter 25- History of Life on Earth Early Earth Oceans: Near boiling Lightening Storms Volcanoes Atmosphere: Water Vapor, carbon monoxide, carbon dioxide, nitrogen,…

Fig. 25-1 Fig 25-UN1 Cryolophosaurus Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings Conditions on early Earth made the origin of life…

1.Chapter 25 The History ofLife on EarthBIOL 102: Rob SwatskiAssoc. Prof. BiologyGeneral Biology II HACC- HACC-York 12. Macro- Macro-evolution Changes over large time scalesare…

Broad Patterns of Evolution Broad Patterns of Evolution Fossils Speciation and Extinction Gene sequence and regulation change cause major change in body plans Goals of evolution…