Convergent Evolution 3

Convergent ontogenesis is the driven by natural selection, the tool for evolution. maturation is the change in gene frequencies deep toss off a population. This requires individuals inwardly a population to have distinguishable phe nonypic expressions of traits. few of these variations of traits grant more(prenominal) reproductive opportunities to those that possess them; for guinea pig they may be stronger, faster, or more attractive to the reverse gear sex. If those traits atomic number 18 then inherited by the offspring, they lead generate more common within the population. On the some other hand, some variations of traits go away stamp down/eliminate reproductive success for those that possess them and those genes will return in the population, as a whole, through time. This interaction amidst genes and the environment results in the changes in gene frequence within a population. In geographically separate but resembling environments, evolution may be driv en by a akin(predicate) selective agent. For example, in desert ecosystems around the world, ignite is a ubiquitous, strong, selective agent that is capable of killing individuals that do not possess adaptations to its power (thus eliminating their genes from the population and favoring the spread of other genes that entrust survival at high temperatures). The possible adaptations to cacoethes ar limited by physiological realities, ancestral histories, and carnal laws.

A desert rodent can not stick up by ignoring the physical law that its protoplasm will curdled at a high enough temperature. It can aestivate, incur crepuscular/nocturnal, or resort to ! subterranean life. There argon a limited number of adaptive solutions to any assumption selective agent. This leads to convergence. That is, evolution by natural selection, pushing the evolutionary paths of unrelated species in similar directions. The limited solutions to selective agents often lead to convergence of a trait. Consider the similarities amongst unrelated aquatic life forms (e.g. a penguin, a fish, and a dolphin)... If you want to fall guy a full essay, order it on our website: OrderCustomPaper.com

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