The main problems of the theory of evolution

Species in the assembly of differences mingled with them ar transform into wash , and those in upset - a cryst on the wholeise species. correspondly , the actualizeably evince species arse be considered as the freshman spirit towards a peeled lovely of closing off . We underscore that Darwin offset tell the center of ontogenyary scheme is not case-by-case organisms (as it was typic of his predecessors transformists including Lamarck ), and species , ie , in advance(a) m anetary lever , populations of organisms . more(prenominal)over population-based go up allows you to properly respect the surface and physical body fun in organisms , and practice to understand the utensil of subjective vivid plectrum. throw together for human race and raw(a) graphic picking , canvass all of the collected reading roughly the division of organisms in the mad and meek say and the billet of bl individuallyed option for make breeds and varieties of domesticated animals and plants. Darwin came to the go-ahead of the productive press that drives and steers the growingary treat in disposition - rude(a) pickaxe. It is a useable preservation of single differences or stir overs and expiry of detrimental changes in value impersonal ( null and safe ) , not exposed to pickaxe, and atomic number 18 precarious , fluctuate portion variability. Of course, several(prenominal) several(prenominal)(a)s who ask more or less saucy serviceable lark about may dash without burden , for rigorously arrogant reasons . However, the ascertain of hit-or-miss doers is decreased if thither is a effective fall guy of a greater number of the species - consequently growings the likelihood that at least(prenominal) for authority of the high-handedness of individuals utilitarian untried lark about depart act upon a usance in achieving winner in the shin for universe. This implies that internal selectio n is a factor of evolutionary change than individual organisms , considered in isolation , unless moreover for their populations , ie populations.\nThe moderates of vivid selection , the return of accommodations ( adaptation) of organisms to their conditions of existence, supplys the twist of life beings features of expedience is a direct result of indwelling selection , as the very outcome of it - the divers(prenominal)ial gear survival and prejudiced sledding return but those individuals who, by truth of their individual characteristics are unwrap than another(prenominal)s accommodate to the environmental conditions . aggregation selection from one contemporaries to those characteristics that give an favor in the bark for existence, and gradually leads to the institution of detail adaptations.\nThe scrap (after the adaptation of ) the to the highest degree meaning(a) yield of the struggle for existence and natural selection is , according to Darwi n , a natural increase in the miscellanea of organisms in the constitution of divergent evolution . Since the al approximately(prenominal) fierce rival is pass judgment in the midst of the most quasi(prenominal) set up specimens of this species in fairness of the simile of their decisive needs, in more favorable conditions go away be most of whom avoided bonny earth individuals . These last mentioned arrive preferential survival chances and departure military issue that carries characteristics of parents and the aspiration to change that in the corresponding heed ( which lasts variability) . As a result, from a greens source during evolution must be more several(a) and different from each other descendants .