Biology - Chp 17 - History Of Life - PowerPoint

Chapter 17 The History of Life

17-1 The Fossil Record ,[object Object]

Fossils and Ancient Life ,[object Object],[object Object],[object Object]

What the Fossil Record Shows ,[object Object],[object Object],[object Object]

How Fossils Form ,[object Object],[object Object],[object Object]

Interpreting Fossil Evidence ,[object Object],[object Object],[object Object],[object Object]

1. Relative Dating ,[object Object]

Index Fossils ,[object Object]

To be used as an index fossil, a species must ,[object Object],[object Object],[object Object]

2. Radioactive dating ,[object Object],[object Object]

Half life ,[object Object],[object Object]

Geologic Time Scale ,[object Object]

What would it take to bring on a new geological era? ,[object Object],[object Object],[object Object],[object Object]

New era being proposed ,[object Object],[object Object]

17 – 4 Patterns of Evolution ,[object Object]

Six important topics in macroevolution are ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Extinction ,[object Object],[object Object],[object Object],[object Object]

Adaptive Radiation ,[object Object]

Convergent Evolution ,[object Object],[object Object]

Q: How does this happen? ,[object Object]

Analogous Structures ,[object Object]

Coevolution ,[object Object],[object Object],[object Object],[object Object]

Bats vs. Moths An Evolutionary Arms Race

Rough Skinned Newt vs. Garter Snake

Punctuated Equilibrium ,[object Object],[object Object],[object Object],[object Object],[object Object]

Punctuated Equilibrium ,[object Object],[object Object]

Developmental Genes and Body Plans ,[object Object],[object Object]

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