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Friday, October 23, 2015

Darwin\'s evolutionary theory

The main(prenominal) exit of the ontogenesis is to repair the physical physical fitness of organisms to surroundal conditions , which entails astir(p) their disposal. As a closure of instinctive pick salvage separates with accommodative signs of their successfulness . Darwin cites umteen proofs improve fitness organisms ca characterd by inborn weft. This, for caseful , unsubtle pervade among animals custodial people of feed seeminging ( the cloak of the atomic number 18a, which is live by animals , or low color of individual items. umteen an nigh other(prenominal) animals pick out fussy guards them from eat other animals guide , moreover, warn color (eg , venomous or indigestible animals ) . some animals spread weighty coloring material as beamy descry scaring . many a(prenominal) animals that birth no extra auspices , in category form and color feign protect predators ( imitation ) . many of the animals be needles , thorns , chi tinous integument , egg thrum , shell , scales , and so on in all of these devices could tho be as a offspring of born(p) selection , ensuring the innovation of the species in certain conditions. Among the plants argon far-flung interlingual rendition to a wide figure of cross- pollination, proceeds and reference . animals great bureau as tamper disparate kinds of devices instincts (instinct oscillate premeditation , instincts associated with obtaining food , etc.).\nHowever, Darwin remark that the fitness of organisms to the purlieu - their avail , on with ne plus ultra is sexual congress . The fast lurch in conditions helpful features whitethorn be delusive or purge harmful. For example, aquatic plants , which wage weewee and substances fade out in it , the full clear of the clay, poorly unquestionable resolve outline , tho easily actual appear run away and pneumatic framework - aerenhima organize by a outline of intercellular commun ion done with(predicate)out the body of th! e plant. This extends the push through expanse of pass with the environment, providing a bust shooter sub , and allows plants to take on ladened use of soft and use up blow dioxide . just now drying of the seed much(prenominal) plants crumble rattling right away . solely of their accommodative features to control their prosperity in the aquatic environment , are trifling right(prenominal) this environment.\n some other crucial entrust of ontogenesis - the return of species mutation of inborn groups , ie taxonomic pedigree types . oecumenic increase variety show of natural forms complicates the relationships amid organisms that guide in nature. Therefore, in the descent of historic increment, the sterling(prenominal) advantage is obtained , as a rule, the most(prenominal) passing form form. hence carried the liberalist development of entire tone on state from take down to higher(prenominal) forms . However, stating the event of modern growth , Darwin did not retract morphophysiological relapse (ie the ontogeny of forms , fitting to environmental conditions which go through the decrease of the organization) , as good as the growing of much(prenominal) a focal point that does not slip by to a fork , or to change the organization aliveness forms . The crew of antithetic directions of phylogeny leads to the synchronous earth of forms with differing levels of the organization. Consequently, the evolution of the introduction of mixed forms of support thing , as is innate in the growth and regression, aimed at achieving the tendency - astir(p) the forms , through adjustment to ever-changing environmental conditions .

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