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| Evolution, Natural Selection |
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| evolution, natural selection |
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| What are the two main points of "Origin of Species" |
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1. animals DECENT WITH MODIFICATION
2. Natural Selection |
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| First Definitions of EVOLUTION |
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| 1. A change over time in the genetic composition of a population (small change) |
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| Second Definition of EVOLUTION |
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| 2. The gradual apperance of all biological diversity (Big change) |
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| What is the small change refered to? What is big change refered to? |
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1. small change = MICROevolution
2. big change = MACROevolution |
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| Eight steps of Natural Selection; First Four |
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1. OBS: Over-reproduction
2. OBS: Populations tend to stay the same
3. OBS: Resources are limited
4. INFER: Struggle for survival |
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| Eight Steps of Natural selection; last four |
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5. OB: Variation
6. OB: Inheritance
7. INFER: FITNESS
8. INFER: DIFFERENTIAL REPRODUCTION = CHANGE IN POPULATION ADAPTIVE CHANGE |
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| Evidence for evolution:(5) |
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1. Natural selection
2. Homology
3. Bio geography
4. Fossil Records
5. Selective Breeding |
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comes from sexual reproduction
A. Mutation
B. Meiosis
C. Crossing of genes
D. Fertilization |
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