Running Head : EVOLUTION THROUGH NATURAL SELECTIONEvolution done Natural SelectionDecember 10 , 2008Evolution Through Natural SelectionEvolution refers to the succession of changes which the distinct generations of organisms have been undergoing over time since the beginning of life on earth . Biologists believe that the primary reason for these changes is intrinsic selection . This is because the milieu or nature in general is full of whole kinds of diseases which are capable of wiping out whole species of organisms and is inhabited by predatory animals which prey on sm aller and weaker animals . Nature has withal been so exacting that organisms are required to possess legitimate specific capabilities before they could even feed properly . Because of these requirements for survival , organisms needed to evolve and adapt themselves to their surroundings in to put out the harsh demands of their environment .
One of the processes of evolution which allows organisms to achieve the fitness required to survive the exacting demands of nature is called evolution finished natural selection (Lyal , 2005Since survival requires fitness the process of natural selection has also been referred to as the survival of the fittest or the expulsion of the unfit It is considered responsible not only for the existence of somewhat two million species of organisms on earth today scarce also the extinction of more than 99 percent of all the species of organisms that inhabited the earth since the beginning of time (Diaz 1997 . All things considered , evolution through natural selection is therefore a process...If you destiny to get a full essay, order it on our website:
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