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independently conceived and described the mechanism of NATURAL SELECTION to explain evolution over time
Charles Darwin and Alfred R. Wallace
Requirements for natura; selection
1) Variation in characteristics in a population
2) These characteristics are hereditable
3) Difference in survival and reproduction for some individuals with specific characteristics over
others
Adaptations
represent the characteristics (traits) that enable an organisms to survive, grow, and reproduce under SPECIFIC ENVIRONMENTAL CONDITION
Alleles
different forms of a gene
Evolution
the change in the frequency of alleles in a population