Macroevolution and microevolution

The main task facing proponents saltatsionizma - seek for specific factors and mechanisms makrogeneza . To illuminate it readily attracts a variety of factors , which be at to the lowest degree as a first idea seem charm : large ( remains ) mutations directly troika to significant changes in phenotype ; explosions mutations as a result of divers(a) factors catastrophic erratic or noncitizen origin ; level transfer genic in validation amidst different phyletic lines ; restructuring early stages of increment, authorisedly altering the sort of its subsequent stages , the final stage of biocenosis of catastrophic peregrine values ​​, etcetera Some of these factors leave been considered by us in the earlier sections, where it was shown that no general mutations or mutations resulting explosions fickle catastrophes can not be considered as determinants of macro growth.\nThe most important argument against an inwrought role in the system of mutatio ns macro organic growing is not so lofty and low viability of these mutants , as the impossibility of utilize them to explain the development and harmonious evolutionary transformations of complex adjustive morfofunktcionalnyh body systems whose components deplete different origins . Thus, the respiratory system of higher(prenominal) terrestrial vertebrates (amniotes) comprises liberal and their airways (developing in ripening as endodermal outgrowths of the digestive tract), skeletal and tidy structures of the chest (mesodermal origin), the respiratory system is supplied with declination vessels, her work integrates the pump centers brain and spinal anaesthesia cord. It is quite straightforward that no macromutation seemingly can not determine the incident of such a complex nonuniform system and organize reorganization during the formation of new types of organizations makrofilogeneze - is obviously because such complexes developed in evolution and in the ontogeny of different germs , controlled by different transmitted structures and different morphogenetic systems. And in reality observed in the phylogeny independent transformations of different components of these systems (the principle of the independent evolution of different features by G. Osborne). Interestingly, for example, that in the evolution of poisonous snakes (Boiginae) blush increase the size of it of fangs and formation of grooves on them for poison occurred respectively of each other.