Charles Lyell &Jean-Baptiste Lamarck Hannah James, Andrew Darimont, Harriet Yan
Jean-Baptiste Lamarck         • Born August 1, 1744 in           Bazentin-le-Petit, France         • Early evolutionist   ...
Lamarckism• Simple life forms evolving into complex species   o Improving towards perfection• First Rule: Use and Disuse• ...
Use and Disuse    • Environment requires      excessive use of an organ       organ becomes bigger (eg.      Giraffe neck...
Lamarckism vs. Darwinism• Lamarckism:  characteristics are  gained/lost/modified  to suit environment• Darwinism: natural ...
Pokémon
Charles Lyell• Born on November 14th  1797 in Scotland• Geologist• Friend of Darwin’s• “The present is the key  to the past”
Lyell’s Theories• Advocated “Uniformitarianism”   o theory that states that the earth changes slowly over time       • The...
Uniformitarianism vs. Catastrophism                                                                    • His opinions diff...
Lamarck vs. Lyell• In a way, Lyell’s theories (though geological as  opposed to biological) were the opposite of  Lamarck’...
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Charles lyell & jean baptiste lamarck

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Charles lyell & jean baptiste lamarck

  1. 1. Charles Lyell &Jean-Baptiste Lamarck Hannah James, Andrew Darimont, Harriet Yan
  2. 2. Jean-Baptiste Lamarck • Born August 1, 1744 in Bazentin-le-Petit, France • Early evolutionist • Opposed Darwin’s theory of evolution • Lamarckism: theory of evolution - species evolve by inheriting characteristics acquired by use and disuse of body parts.
  3. 3. Lamarckism• Simple life forms evolving into complex species o Improving towards perfection• First Rule: Use and Disuse• Second Rule: All changes in the body were inheritable• Species would adapt to the environment 1. Change in behavior 2. Modification of organs 3. Offspring inherits improved characteristics
  4. 4. Use and Disuse • Environment requires excessive use of an organ  organ becomes bigger (eg. Giraffe necks) • Environment does not require use of an organ  organs shrinks and disappears (eg. Penguin wings)
  5. 5. Lamarckism vs. Darwinism• Lamarckism: characteristics are gained/lost/modified to suit environment• Darwinism: natural selectionhttp://www.youtube.com/watch?v=4HBdxDBqfHc
  6. 6. Pokémon
  7. 7. Charles Lyell• Born on November 14th 1797 in Scotland• Geologist• Friend of Darwin’s• “The present is the key to the past”
  8. 8. Lyell’s Theories• Advocated “Uniformitarianism” o theory that states that the earth changes slowly over time • The Earth has always changed in the same way• “It makes sense to assume that geological processes acting in the past were much the same as those we see today – forces such as sedimentation in rivers, erosion by wind, or deposition of ash and lava by volcanic eruptions.” - Charles Lyell
  9. 9. Uniformitarianism vs. Catastrophism • His opinions differed from the “Catastrophism” theory • Catastrophism: the belief that any changes that happened to the earth were abrupt. • Catastrophism – Noah’s FloodGeological Cross-section of the Sidlaw Hills, Strathmore, and theGrampains by Charles Lyell
  10. 10. Lamarck vs. Lyell• In a way, Lyell’s theories (though geological as opposed to biological) were the opposite of Lamarck’s theories. Lamarck Lyell • Species evolve in • Agreed with Darwin one that species would lifetime/generation evolve over time and pass that new through natural features on to its selection offspring
  11. 11. Thanks forwatching!
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