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Definition
- organisms are unchanging
- the earth is young
- there are no important variations
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| founded geology. Challenged typological thinking |
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| Categorized species into groups. Challeneged typological thinking |
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| Proposed the first theory of evolution but still supported special creation |
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- founded population thinking
- found important variations amongst the birds he was studying
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- groups of organisms that live at the same place at the same time
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| recognizes the variations between populations |
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| change in characteristics of a population with time( Descent with modification) |
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- geological records
- fossil records
- vestigial traits
- Biogeography
- structural homologies
- genetic homologies
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Definition
| it occurs when heretable traits lead to differential survival and repeoduction |
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- Variations in individuals
- traits are heritable
- the struggle for existence will facilitate survival and reproduction for organisms with most fitness
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| created by natural selection. They are traits that help the organism survive and reproduce |
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| random changes in genetic makeup of organisms during cell division. The only source of new traits. |
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| blending theory of inheritance |
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Definition
| that parental traits and genes blend together to make offsprings traits. |
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- father of modern genetics
- elucidated the blending theory
- he examined the transmission of variable phenotypes across many generations of the garden peas in his monastery
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| it is any observable characteristic of an organism |
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| it is a measure value of a trait |
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Definition
gametes are formed, alleles from one trait separate into different gametes. |
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Definition
| it is the change in allelic frequency of a population over time. |
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| it causes allele frequencies to change randomly |
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Definition
| it occurs when individuals leave one population, join another and breed |
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Term
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Definition
| hardy and weinberg hyppthesized that all of the alleles from all the gametes produced in each generation goes into a single group called the gene pool and combined at random to form offspring. It was a null hypothesis for evolution |
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Definition
- random mating
- natural selection
- genetic drift
- gene flow
- mutation
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