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Explain The Steps That Are Necessary In Evolution By Natural Selection

278 Words2 Pages
¬ The steps that are necessary in evolution by natural selection are variation, heritability, differential reproduction and lastly the prevalence of the traits. Variation is essential for natural selection because as variations of certain traits are selected for or against across generations, the population is set to evolve. An example of this would be mutation. Mutation is a change at the genetic level which means a change in the DNA. Heritability because traits have to be able to be passed on to the next generation or there would be no evolution. Differential reproduction leads to new species that is caused by geographic isolation which can be explained through the beetle color example. If some beetles become isolated from the original
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