2/26/14 objective: who was charles darwin and how is he important to the theory of evolution?
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2/26/14
Objective: Who was Charles Darwin and how is he important to the theory of evolution?
Evolution
• Genetic change in a population or species over generations
Creationism
• Book of Genesis– All species were individually designed by a
creator– Earth is about 6000 years old
http://www.pbs.org/wgbh/evolution/library/11/2/e_s_7.html
Scopes
• Scopes Monkey Trial
• High school teacher accused of teaching evolution
Aristotle
• Believed in spontaneous generation• Species are fixed/permanent and do not
evolve
Buffon
• Studied fossils and suggested Earth is much older than 6000 years
Contributions to the Theory of Evolution
• Charles Lyell (influenced Darwin)GeologistMaterial forces Gradually change Earth’s
surface
Contributions to the Theory of Evolution
• Jean Baptiste Lamarck:Used fossils to determine that life evolvedThought that using or not using body parts
develops traits that are passed to offspring (wrong!)
Contributions to the Theory of Evolution
• Charles Darwin: “Father of Evolution”HMS Beagle (1831)
- A surveying ship that traveled around the S. American coastline
- Darwin collected fossils, living plants and animals
Contributions to the Theory of Evolution
Galapagos Islands- Darwin noted unique organisms on each island, similar but different from the mainland.
On the Origin of Species by means of Natural Selection
• Book written by Darwin that explains ways organisms become adapted to their environment
2 Features of Darwin’s Theory
1. Descent with Modification: Diverse forms of life have arisen from ancestral species (accumulating different modifications)
2. Natural Selection: the mechanism of evolution, those species with the best traits will survive and reproduce.
http://www.pbs.org/wgbh/evolution/library/11/2/e_s_2.html
http://www.teachersdomain.org/resource/tdc02.sci.life.evo.becfossil/ (2m 34s)
http://www.teachersdomain.org/resource/tdc02.sci.life.evo.fishfingers/ (3 m 48 s)
http://www.teachersdomain.org/resource/tdc02.sci.life.evo.howhappens/ (7 m)
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