Natural Selection

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17 Terms

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Behavioural
________ or structural or physiological features that make an organism better suited to its environment.
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Reproduction
________ and inheritance: the variation passed to the next generation.
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Gene Pool
________: collection of genes (alleles) in a population at any one time.
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Population
________: group of individuals living in the same place at the same time who are the same species.
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Non random changes
________: sexual selection, natural selection, artificial selection.
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Environment Selection
________: environment favours a certain organism.
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Random changes
________: mutations, genetic drift, and genetic flow.
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Gene Pool
collection of genes (alleles) in a population at any one time
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Population
group of individuals living in the same place at the same time who are the same species
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non-random changes
sexual selection, natural selection, artificial selection
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Random changes
mutations, genetic drift, and genetic flow
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Variation
light→ dark, immune vs. not immune etc
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Selective Pressure
overpopulation, food shortage
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Environment Selection
environment favours a certain organism
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reproduction and inheritance
the variation passed to the next generation
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Black fur
helps them hide
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Produce a lot of black pigment
which is why their fur is black