The historical development of the organic world

biological regression is associated with a decrease in the fitness of organisms to ever-changing environmental conditions, a decrease in their numbers and a reduction in ara. This species is jeopardize with quenching. Currently, numerous another(prenominal) species of plants and animals in riskiness of experimental extinction, often repayable to human activities. These species ar listed as jeopardize . Many species pass averted the danger of extinction (eg, antelope, bison , etc.). . Due to inter motleys in the Azov Sea salt regime threatened extinction of a number of planktonic organisms that place run short only in distilled water, and as a consequence - the extinction of species that feed on the relevant species of planktonic organisms. In this regard, earlier restoration projects actual salt regime of the Azov Sea.\nAromorfozy - a flip that adds the morphological scheme overall viability of organisms. This developing of the nodal points that determine the i ncrease of new gatherings of the organic world - course types. An example is aromorfozy The downslope of jaws, fins of anglees , the swim bladder converting the lungs , snapper constitution and its subsequent ontogenesis , the trans establishment of fins tip for five- outgrowths in amphibians ; bahatsklitynnist , the formation of tissues and variety meat of plants , which ensured them unwrap of the water on dry cut , the emergence of the cerebral cortex and more. deepen paired fins ky staireryh fish to amphibian limb even lead a demand for the release of vertebrates on impose. The appearance of eggs, immature membranes surrounding it provided the festering of vertebrates on background , and only consequently formed this land vertebrates unrelated during the procreation water. The development of tether and later a four heart gave them the opportunity to prepare teplokrovnist and all habitats. A. Severtsov illustrious that Aromorfozy - a mount of that fundam ental law brings a particular group of animals or plants to a higher direct and thus puzzle the stage for get along progressive development. consequently , progressive evolyuts.ya make want steps up.\nIdioadaptatsii - a change that does not increase the level of organisms, nevertheless enable them to break down adapt to real narrow conditions. equality the structure of the automobile trunk in bird: chicken , ducks , swallows , woodpeckers and many others. The level of organization in which one, notwithstanding for example rma surface and beak are different , trig to certain foods. In mammals that live in water ( cetaceans ) and on land - the level of one ( in structure , such as the circulative , respiratory secretions) , and eubstance shapes , limbs - different. Typical examples idioadaptatsiy be protective colouring of the body in animals; thorns and spikes - in plants , conglomerate prystosuiannya to spread seeds.\nBy idioadaptatsiy having lower magisterial c ategories - species, genera , families.\nTotal devolvement - a change associated with the diminution of Activia and decrease function of the organs, like a step down ( reverse phenomenon aromorfozy ), but they can contribute to a better modification of organisms. This simplification of the individual(a) leads to the advancement of biological species yohs prosperity. Adjustments related to the simplification of commonly observe in organisms that bugger off moved to a sedentary life-style and parasitism. Stozhkovi Hearts muzzy the digestive organs , parasitic plants - paddle - leaves, roots , kinda of them suckers. Usually accompany by a simplification of the intensifier development of the fruitful system.