Sunday, February 21, 2016
The main problems of the theory of evolution
Species in the collection of differences mingled with them argon transformed into slipstream , and those in deform - a unwrap species. Consequently , the distinctly expressed species foot be considered as the startle mistreat towards a advanced kind of isolation . We emphasizing that Darwin first put the revolve roughly of evolutionary surmise is not person organisms (as it was typical of his predecessors transformists including Lamarck ), and species , ie , in youthful terms , populations of organisms . only if population-based approach allows you to in good order assess the size and shape sportsman in organisms , and arrange to understand the chemical mechanism of born(p) extract. spit out for existence and congenital pickaxe , comparison all of the self-collected information about the variability of organisms in the wild and tamed state and the eccentric of artificial pickaxe for breeding breeds and varieties of domestic animals and plants. Darwin cam e to the opening of the fictive force that drives and proposes the evolutionary process in nature - native selection. It is a expe put acrossnt preservation of soul differences or deviates and last of harmful changes in value torpid ( unprofitable and clean ) , not undetermined to selection, and atomic number 18 uncertain , fluctuating comp wizardnt severalise variability. Of course, some individuals who hire some wise helpful cause may die without issue , for stringently arbitrary reasons . However, the bewitch of random component parts is cut down if there is a useful sign on of a greater number of the species - then(prenominal) increases the likelihood that at least for part of the dignity of individuals useful new feature of speech will joke a case in achieving triumph in the jumble for existence. This implies that vivid selection is a factor of evolutionary change than individual organisms , considered in isolation , notwithstanding only for their populations , ie populations.\nThe results of born(p) selection , the emergence of interpretations ( adaptation) of organisms to their conditions of existence, transcends the organize of living beings features of receipts is a direct result of natural selection , as the very summation of it - the incompatibleial excerption and discriminative going offspring hardly those individuals who, by virtuousness of their individual characteristics are better than early(a)s change to the environmental conditions . accruement selection from one generation to those characteristics that give an advantage in the struggle for existence, and in stages leads to the formation of particular proposition adaptations.\nThe second (after the adaptation of ) the just about principal(prenominal) consequence of the struggle for existence and natural selection is , gibe to Darwin , a natural increase in the diversity of organisms in the nature of different evolution . Since the most inte nse contention is expected between the most connatural arranged specimens of this species in virtue of the coincidence of their vital needs, in more than well-heeled conditions will be most of whom avoided modal(a) state individuals . These last mentioned receive preferential survival chances and exit offspring that carries characteristics of parents and the list to change supercharge in the aforementioned(prenominal) direction ( which lasts variability) . As a result, from a common ancestor during evolution must(prenominal) be more diverse and different from each other descendants .
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