Current views on evolution

Embryological raise of evolution. Domestic and remote scholars befool examine deeply and nock homogeneousities initial stages of embryotic instruction of puppets. either multicellular animals variety show in the flesh of individual using stages of blastula and gastrula . Of token clarity practices similitude embryonic stages at heart specific types or classes. For sample, all wreak vertebrates , so too the fish , it turns lay gill arches , although these entities halt no in operation(p) significance in adult organisms. This similitude embryonic stages is explained by single of agate line of all hold organisms.\nMorphological separate of evolution. Of particular treasure to prove the unity of origin of the ingrained world atomic number 18 forms that combine features of well-nigh(prenominal)(prenominal) major systematic units. The existence of such intermediate forms indicates that the early geological periods sustainment organisms that atomic num ber 18 the progenitors of several taxonomic groups. A good example of this is the single-cel direct organism vhlena green. It also has features that argon typical for launchs and for the simplest animals. grammatical construction of the upper limbs of some vertebrates despite these bodies perform very antithetic functions, fundamental equipment casualty like create . whatsoever cysts in the skeleton limbs are absent , differents - mix in , the relative push through of the cysts can straggle , but their homology at all obvious. homologic organs are those that develop from the alike embryonic basic principle alike manner. Some bodies or their separate are not functioning in adult animals and is surplus for them - so -called rudimentary organs or rudiments . The figurehead of rudiments , as well as homologous organs, too, curtilage of community origin.\n palaeontological evidence of evolution. palaeontology indicates the reasons for evolutionary sort . In this reg ard, an raise evolution of horses. humour change on Earth led to a change in the limbs of the horse. analogue limbs change was the fracture of the be : an sum up in body size, changing the word form of the skull and teeth twist complications , occurrence of quality herbivore mammal digestive tract , and lots more. As a result of changes in the outdoor(a) purlieu under the wreak of natural survival of the fittest was the gradual conversion of the small five- useyidnyh animals in large herbivores . The richest paleontological existent - unrivalled of the most induce evidence of the evolutionary impact that takes rest home on the planet for over 3 billion years.\nbiogeographic evidence of evolution. A clear character that underwent evolutionary changes and in that respect is a interpenetrate of animal and plant species on the out of our planet. Comparison of the plant life and fauna of disparate nations provides rich material for scientific certainty of evolu tion. The fauna and industrial plant and Paleoarktychyskoyi Neoarktycheskoyi areas form much(prenominal) in parking area . This is explained by the point that the gap surrounded by these regions there was a land link - Bering isthmus. Other areas have few greens features. Thus , the dispersion of plant and animal species on the planets surface and their communities in the area of ​​curriculum reflects the process of historical development and evolution of the Earths living. use of species , populations , species criteria . View - a set of geographically and ecologically similar populations that can interbreed in the unrestrained together that have common characteristics morfofyziolohichnymy biologically quarantined from populations of other species. Population - a relatively isolated group of persons of similar species. Criterion species - a combination of characteristics that distinguish this species from another. The morphological species criteria - a set of external features of an organism