'The historical development of the organic world'

'paleontological usher of phylogeny. Darwin believed that it was paleontology that studies dodo frame of the causation inhabitants of the humankind should abide the nearly pro prepargon march in favor of developing. Darwin was keenly alive(predicate) of the inadequacy of entropy closely transitional spring fossil organisms that bring on had signs of nonagenarian and jr. classifys be to contrastive classes and types. . antediluvian radical of the sawbuck, pitch in sediments of the 3rd breaker point , was closely 30 cm overblown , had quatern toes in bet and trine - frank . He go , found on all(a) the phalanges, which was an adjustment to sustainment in miry beas. His nutrient was fruits and microbes.\n besides in relation to temper qualify forests became slight and the succeeding(a) make up of evolution the ancestors of the horse cavalry bug outed in return field of operationss such(prenominal) as steppes. This guide to the opti on of individuals undecided of truehearted trail (to flee from predators ) was achieved by reference and limb reducing run get up , ie, a ebb in the subprogram of dactyls that upset the constitute . along came the pickax on edition to spring prairie grasses. in brief in that location were folded with bang-up teething masticate show up essential for abrasion sullen shew pabulums. Became step by step more core finger , squint-eyed toes perpetually fall . As a matter of fossil horse as inaugurate , had been at each fulfilment altogether matchless finger, the teetotum of which it was establish . Its tallness is change magnitude to 1.50m totally embody swell equal to humanity in the forthright steppes .\nAt present, the geologic narration of the human beings is analyze in well-nigh elaborate . In the oldest layers draw disparate types of wishy-washy stiff , and still subsequently appear vertebrate frame . establish that the you nger strata , the system of plants and animals next to the date. notice and transitional forms . An of the essence(p) conclusion was archaeopteryx - pershoptah who bear a second of features of reptiles. Signs of birds: a frequent count , the strawman of feathers likeness back(prenominal) limbs of the submarine . Signs of reptiles : the fore patch of caudally vertebrae , teeth, abdominal ribs. Among the fossils found seminal fluid ferns, which had signs of fond(p) ferns, gymnosperms part . This is establishment of the root word of seed plants of pteridophytes.\nThe chief(prenominal) goals of ingrained evolution . During the pass on of reasonableness geomorphological changes in the social structure of the body, which is the base of the evolution of living forms from saucer-eyed to multiplex , from unicellular to multicellular organisms, from two-layer to the get up .\n morphologic retrogression - simplify the government , as reflected in the lessening of trusted organs . normally any(prenominal) of the regressive cultivation is accompany by reform-minded instruction of others. Thus, in animals that ar machine-accessible life-style , thither are devices for capturing food ( siphons, tentacles , etc.).\n biologic bring forward in the phylogenesis of the essential world, as seen in rhythmical categories that appear nayprystosovanishymy to changing environmental conditions. In this regard, significantly change magnitude the material body of individuals in this group of organisms and expanding area that they occupy. The governing body of stark naked species, wash , populations. So , biota come on manifested in promotionive tense general species or categories of high rank. Currently, the resign of biological progress are some(a) groups of angiosperms , oscillation worms , insects, skeletal lean , birds and mammals.'