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14 cards from this deck
The genetic change in organisms over a long period of time
Theory of natural selection
Charles Darwin
1858
Alfred Russell Wallace
Organisms produce large numbers of offspring
Environment can only support a limited number of organisms
Genetic variations exist within populations
Struggle for existence (competition)
Space, food, water, mates
Light, space, water, minerals
Natural selection/survival of the fittest
Preserved remains/impression of organism that lived long ago
More complex, showing gradual change over time
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