Biology II Chapter 15: The Theory of
Evolution
Mr. Crowder
09-10
Chapter 15: Types of Fossil Evidence
Explaining the History of Life
• Most of the evidence for evolution is indirect evidence—meaning that we cannot see it evolving right here, right now.
• Fossils are a major source of indirect evidence
Chapter 15: Types of Fossil Evidence
Explaining the History of Life
Evidence found in the fossil record:
1. Homologous structures:
Pg. 401
: features with a common evolutionary structure and/or function
Chapter 15: Types of Fossil Evidence
Explaining the History of Life
Evidence found in the fossil record:
2. Analogous structures:
http://www.peabody.yale.edu/exhibits/treeoflife/images/convergence4.jpg
: features that perform similar functions but evolved differently
Chapter 15: Types of Fossil Evidence
Explaining the History of Life
Evidence found in the fossil record:
3. Vestigial structures:
http://www.iss.k12.nc.us/schools/shs/jmccartney/natsel.html
: a present-day body structure that no longer serves a purpose.
Chapter 15: Types of Fossil Evidence
Explaining the History of Life
http://studentreader.com/category/ecology-biodiversity/
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