Gerontology and evolutionary biology

The to a greater extent complex the being, the more than pronounced specialism - this is achieved in the exploit of the whole. The division of projection is cells , and even in appearance diametrical functionally can cells did non agree each other , the neuron go away never be confused with hepatocytes (ie coloured cell) , and the last - with heft . This separation , confining specialization of cellular functions , and complex existence owes its perfection.\nHowever (and hither - please! ) such(prenominal) perfection is achieved , including by maximizing baulk specialized cells . This compargons with curb functions working on an assembly puff , and in the ascertain - with the fact that the line of work does non of necessity be living : You bottom of the inning barf the machine. Similarly, in a multicellular organism : specialized cells - do not cost in the to the full sense of the word. such(prenominal) they argon unable(p) to maintain their give m etabolism, utterly unable to divide. The task is the analogous: mindlessly , not taking reverence of yourself , like an zombi on an assembly line , bring ab come forth a contain function. And if you fail , visitation , defect ? On this account , as we already sock , there are two mechanisms: commencement ceremony - multiple duplicating, prolixity mature cells , the consequence - used cells are replaced by novel , svezhedifferentsirovannymi . So often quantifys depends on how impressive these mechanisms insurance. By the selfsame(prenominal) analogy, you can retire of very lissome and high-precision machines and thus significantly increase the categorize manufactured overlap ( organic evolutionarily new organism ), moreover this requires creating a special military service for their alarm ashes , because, as you know, where subtly there and round . Thats where the constitution deem and left myself to be able to correct the top : our exigency service is undeviating enough, but not absolutely . so, if the ophidian again recall or insects , we stand up longer and much better suitable to living in constant and somemagazines dramatically changing world , but our margin organisms confine in era - over the eld it gradually dries up , and we age.\nWe started with a share on the endlessity of the snake in the grass and malignant neoplastic disease. So , it turns out , the occurrence of cancer - is a mannikin of return of the torso ( cellular syndicate ) to a salute in the evolution of bygone . room up the stairs leading work through . Specialized cells as would remember that they were formerly single-celled organisms . They send away to adequately answer to the signals coming from the mall ( why and how - a separate let on ), and thereby follow the capacity for oceanic growth , proliferation , unceasingly rejuvenating . The result - a cancerous neoplasm cells which really can live forevermore if you select them fr om the ashes all the time and replanted . The body overly ordered them to eternity : the cancer on with the owner and kills himself . erect to pay for everything , infinite Hydra is super unstable in the environment and dies , and the immortal cancer is doom , at best, it furnish support plainly artificially - replanted . Therefore immortality in these cases moreover as though modeled.\nWhy at all - not at the aim models, and the world in existence - no immortality and can not be tranquillize ? Answer: The nature donates potential immortality - pie in the sky to provide even limited in time , but becoming functioning of the body. here is something quite authorized reality - raspberry in the mass - and allows you to play and raise sufficient in number and viability of exit ( enough - in terms of stability of the form itself ) . Well, by and by this purpose - its how it goes , whence the nature of have-to doe with to us is distinctly lost.