Wednesday, August 19, 2009

Darwins vs. Lamarck theory of evolution

Darwins

  • Individuals display differences
  • Shortage of food leads them to fight for existence
  • Individuals with superior differences have more change to reach adulthood, reproduce and transmit these variations to their offspring

Lamarck's

  • Environmental changes generate new needs
  • these needs determine to use or disuse of some organs
  • such organs develop or are diminished
  • the acquired characters are hereditary

*Contrast to Lamarck's evolutionary, Darwin's theory of evolution proposed natural selection as the basis of evolution and human origin*

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