The Difference Between Natural Selection and Sexual Selection

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The Difference between Natural Selection and Sexual Selection
There are debates raging on whether to regard natural selection and sexual selection separately. On one hand is the argument that the two are mutual and in particular, that sexual selection is a part of the natural selection. On the other hand is the contention that the two are exclusive of each other because the manner in with each selection progresses (Andersson & Simmons, 2006); (Kokko, Jennions & Brooks, 2006). For instance, natural selection is not selective in the sense of deliberation. Natural selection is eliminative, where organisms that do not meet the reductive nature of their environments cease existing. The elimination has no ordered sequence because it not definitive which organisms are up for elimination. Additionally, mate choice occurs in both males and females, although females appear to exercise this choice more than males (Rundle, Chenoweth & Blows, 2006). Alternately, sexual selection is deliberative because it involves organisms exercising elements of premeditation and choice, elements absent in natural selection.
There are several characteristics that make up an organism that predispose some organisms do perform better compared to others in environments exigent for their existence. However, determining the interaction of these challenges with their environment is not straightforward. To illustrate, showing how mating preferences evolve genetically is challenging and compounded by the fact that several mechanisms co-occur (Andersson & Simmons, 2006). Such dynamics are a filter that disrupts the eliminative tendencies of natural order. This gives rise adaptations of organisms in a process that sees sexual selection complementing while at the same time disrupting natural selection (Rundle, Chenoweth & Blows, 2006). Complementarily arises from the fact that only those organisms that…...

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