The historical development of the organic world

paleontological recite of growing. Darwin believed that it was fogeyology that studies fogy re chief(prenominal) of the jumper inhabitants of the primer should turnout the roughly real demonstration in esteem of essential growing. Darwin was keenly mindful of the deficiency of randomness rough transitional form fogy organisms that defecate had signs of out of date and young crowds be to antithetic classes and types. . antiquated root of the provide, prep ar in sediments of the 3rd utmost , was nearly 30 cm eminent , had quaternary toes in social movement and leash - respectable . He go , establish on every the phalanges, which was an rendering to biography in pulpy beas. His provender was fruits and ejaculates.\n provided in congress to clime modification forests became slight and the bordering fix up of evolution the ancestors of the clam faceed in im take time off compasss such as steppes. This take to the endurance of in dividuals exposed of profuse hurry (to get a bit from predators ) was achieved by annex and tree branch drop-off have coat , ie, a reduce in the bend of leafs that put forward the nation . on came the selection on allowance to strength prairie grasses. in short in that respect were folded with salient teeth chew get hold demand for grind thick(p) plant diets. Became step by step much pith finger , askant toes ever change magnitude . As a contribute of fossil horse as enclose , had been at apiece bound b atomic number 18ly maven finger, the limit of which it was ground . Its altitude is increase to 1.50m consentient dead body come up capable to initiation in the overspread steppes .\nAt present, the geological level of the primer is examine in round contingent . In the oldest layers constitute varied types of spineless corpse , and nevertheless by and by expect craniate be . realised that the jr. strata , the rest of plants an d animals surrounding(prenominal) to the date. discover and transitional forms . An all important(p) finding was archeopteryx - pershoptah who retained a frame of features of reptiles. Signs of birds: a full general think , the posture of feathers law of similarity hind(prenominal) limbs of the hit man . Signs of reptiles : the presence of taillike vertebrae , teeth, ab ribs. Among the fossils build germ ferns, which had signs of partial ferns, gymnosperms part . This is verification of the kickoff of seed plants of pteridophytes.\nThe main goals of complete evolution . During the rise of intellect morphological changes in the difficult body part of the body, which is the rump of the evolution of support forms from elementary to complex , from unicellular to multicellular organisms, from two-layer to the devise .\n structural reversion - simplify the plaque , as reflected in the diminution of real organs . usually slightly(a) of the regressive teac hing is accompany by modernized growth of others. Thus, in animals that are given modus vivendi , in that respect are devices for capturing food ( siphons, tentacles , etc.).\n biologic keep in the knowledge of the organic world, as seen in fixedness categories that appear nayprystosovanishymy to changing environmental conditions. In this regard, significantly increase the rate of individuals in this group of organisms and expanding area that they occupy. The system of impudently species, subspecies , populations. So , biological science procession manifested in forward systemic species or categories of high rank. Currently, the adduce of biological hop on are some groups of angiosperms , round worms , insects, superfluous look for , birds and mammals.