biology unit one

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  • Created by: bondc1471
  • Created on: 30-01-17 17:49

Use Darwin's theory of natural selection to explai

  • Variation in poppulation
  • longer noised induviduals get more food/ leaves
  • the survivours breed more passing on their alleles.
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Lamarks theory for how a elephants trunk evolved

  • ancestors stretched their noses to reach for food/ leaves.
  • this was then passed on to their offspring
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give two reasons why Darwin's and Lamark's theorys

  • not enough proof
  • mechanism of inheritance not known
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why did people in Darwin's time dissagree with his

  • they beleived that god made everything
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why do scienstist now beleive Darwin's theory ?

they have the mechanism of inheritance discovered.

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