Yintoni na le mali yaye yintoni na intsingiselo yalo umsebenzi eziphilayo

Zonke izinto eziphilayo, abemi behlabathi, ziinkqubo ezivulekileyo eziphilayo. Ukuze alondoloze ubomi babo efuna ukungena kokutya, amanzi kunye ne-oksijini kokusingqongileyo lwangaphandle kunye nokususwa kweemveliso metabolic. Ngokucacileyo, zeBlack loo yokukhetha kufuneka ukugcina homeostasis umzimba ophilileyo. Yintoni ebangela le ukunqongophala mgaqo? Ukufa kwenzeka ngenxa ubuthi iiseli metabolites yakhe.

Evolution negalelo ukuvela ngemizimba enza umsebenzi ukususa ityhefu. Namhlanje, baye bonke abameli zasendle, ukususela elula ebantwini. Kweli nqaku, siza kufumana ukuba yintoni ukhetho, kwaye phonononga iimpawu zayo, uphawu iintlobo eziphambili eziphilayo.

ulwazi jikelele

Eziphilayo kuqulethe iseli enye, abe inkqubo egqibeleleyo ukuzeyisa kunye detoxification, kwasekwa ngenxa dissimilation. Umzekelo, Amoeba Proteus kunye euglena eluhlaza isuswe ubuthi amanzi agqithisileyo ngokusebenzisa inwebu yeseli kunye contractile vacuole. Ubalula ukuba ukukhethwa metabolites ukuziqhelanisa elula kubume umzimba yokuhlala zasemanzini. eziphilayo Multicellular nzima inkqubo wokususa ityhefu. Kwiflethi, ngeenxa zonke, annelids kunye izilwanyana kubonakala tyhubhu - protons okanye metanephridia.

Somdlavuza luphawulwa nobubovu eluhlaza, nezinambuzane nokuphuhlisa izitya Malpighian kunye nomzimba namanqatha. Ukubonakala Isingqi amathambo lwangaphakathi inguqulelo enkulu inkqubo yokwabiwa kwamalungelo. Biology ekuyo utyhila ukuyilwa amalungu ezinzima - zezintso ngezibini. Cinga yesakhiwo ukusebenza kuyo.

Evolution of the system excretory

Iintlanzi babe iribhoni-ezifana mesonephros, elele ngapha nangapha yomqolo lokuhluza negazi. Lwane compact amalungu excretory ibekwe kwi vertebra sacral. Kwezi, umchamo ureter singena cloaca. Imbonakalo kidney zangasese e izirhubuluzi, iintaka, ezincancisayo kunye nabantu - yinto aromorphosis ebalulekileyo.

nephrons sezintso eyenziwa ezimbini inkqubo physico-imichiza complex: nokuyicoca igazi nomchamo ephambili reabsorption. Ngenxa yoko, igazi ngokupheleleyo icocwe ityhefu, nto leyo inika umgangatho physiologically eqhelekileyo homeostasis.

Ekuphetheni

Kweli nqaku, senza wakhangela okwenziwe ukhetho. Ngoku uyazi iimpawu le nkqubo kumaqela ahlukeneyo eziphilayo.