population experiencing evolution by genetic drift There are no fitness

Population experiencing evolution by genetic drift

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Identify the scholars that influenced Darwin and Wallace, leading to the development of their theories on natural selection.
o Struggle to survive = competition for food, shelter, other resources o Struggle to reproduce = competition for a mate and protection of offspring - Individuals who win competitions are more likely to survive and reproduce, passing traits on to the next generation  Survival of the Fittest - Over time populations contain individuals with certain trait or adaptations that allowed their ancestors to survive/reproduce better than those without the traits - Populations experience small changes that add up over time (based on Lyell’s theory) Fitness - A measure of how much an individual’s genotype is expressed in the next generation - Direct fitness: Offspring produced by an individual that survive and reproduce - Indirect fitness: Offspring of close relatives survive and reproduce Know the 3 conditions required for natural selection to occur.

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