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Published byShon McDaniel Modified over 9 years ago
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(Macroevolution) (1)
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Developed the theory of evolution by observing animals on the Galapagos Islands Wrote a book Origin of Species to describe his theory (2)
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The environment plays a role in which animals can survive and which may die Ex. In the Arctic only dogs with long, thick fur will survive. (3) Which dog should live in each environment?
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Darwin’s Finches http://www.brainpop.com/science/ecolog yandbehavior/naturalselection /
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Every once in a while there are changes in DNA bases – mutations Mutations can cause misreading of DNA (4) Statistical Chances of a Mutation Occurring to One Nucleotide is 1/10 9
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Mutations cause mostly bad disorders, but every once in a while there may be a non- harmful mutation Always remember that mutations are random events!
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A trait (caused by a mutation) that allows an organism to have a better chance of survival (5)
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Adaptations are a result of “beneficial” mutations, these mutations cause changes in organisms and allow them to survive. All organisms have a mix of genes. Certain environments cause specific genes to be chosen from pre- existing genetic information.
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Any animal that can not survive in the environment will go extinct. (6)
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