Yintoni na ubungqina zazivelela

Malunga ngemvelaphi zehlabathi eninzi iinguqulelo. Mhlawumbi enye yezona inokuthenjwa phambili Darwin kwiincwadi zakhe dumeke. Yena wayekholose ubungqina okhoyo ukuba izinto zazivelela, nto leyo emva amaxesha amaninzi uphando kwaye aqinisekiswe. Izibakala ezibonisa kancane zehlabathi eziphilayo, ukuvuma ngokwaneleyo kwaye zahlukahlukene. Bathi bonke ubomi on Earth avela iintlobo pre-ekhoyo utshintsho yemfuza.

kakuhle kakhulu lo ngendaleko lezilwanyana kunye nezityalo, ibhalwe kwirekhodi yefosili, bakhonza elinye zokuqinisekiswa ka kuphuhliswa ngayo yonke into. Ukongeza, le "ngxelo yefosili" ikuvumela ukuba ukubuyisela amacandelo ngabanye phylogeny. Ezi iibhalansi - oko kuphela amazinyo, amathambo okanye ezinye iindawo nzima izityalo okanye izilwanyana eziye basinda, kuba nalo naliphi na ikhethe okanye lweminwe, ezishiye eziphilayo eyayivele. Ndimele ndithi ukuba ikhona, vula kuphela inxalenye encinane zezinto eziphilayo yintoni eyayikho kulo mhlaba ngaphambili. Qhubeka ukuphanda kunye nokuhlola ezi paleontologists, izazinzulu inxaxheba ekuqokeleleni kunye nokutolikwa kwedatha malunga eziphilayo yamandulo.

Kufuneka ke ukuba ubungqina nasekusungulweni yendalo ephilayo bohlulwa babe ngamaqela eziliqela. Ngoko ke, kukho ubungqina bokuba isekelwe ubunye imvelaphi behlabathi ephilayo. Ezi ziquka into yokuba phantse zonke izinto babe elemental imichiza kuqamba efanayo. kubaluleke kakhulu ngezenzeko ebalulekileyo izilwanyana neentsholongwane, neeproteni yezityalo, kunye nucleic yakhiwe sihlala amacandelo efanayo. isakhiwo zeeselula ukuba phantse zonke izinto. Njengoko molecule beqokelela amandla, ATP wasebenzisa.

oosonzululwazi basekhaya amazwe baye bafumana ubungqina kwemvelo, enxibe ikharektha embryological. Ngenxa olunzulu sifundo kwezilwanyana multicellular usaqala kukho ukufana kakhulu. Ingakumbi wabona ngokucacileyo iimpawu ezifanayo imibungu akwi kwiklasi enye okanye uhlobo. Ngokomzekelo, xa lomqolo ezisentlabathini yeengcaciswana ngokubekwa nakwiingqameko zalo, kumculo kwakunye iintlanzi, nangona abadala nje, zinokubaluleka ezisebenzayo. Oku kuthetha ukuba zonke izinto eziphilayo babe imvelaphi eqhelekileyo. Ngu wabonakala kwembali yabantu, yaye ziquka sekukubi, okt iindawo ezingaphuhliswanga okanye amalungu omzimba. Yeyona ixhaphakileyo ezi ziquka coccyx, nto leyo ithambo esingunxantathu abunjwe ngayo amalungu omqolo ezininzi ezinyibilikiswe. Xa yakha umsila, Noko ke, akulula xa uqeqeshelwa ukuba bipedalism kufuneka ukuba wanyamalala. Ngenxa yale sitho abantu ukuba usaqala, kodwa ubukho balo lungqina ingcamango yokuba izinto zazivelela.

Kwakhona esidumileyo kuyinto atavism. Libhekisela inkangeleko uphawu ethile ukuba uphawu wooyise, kodwa ngokuqhelekileyo kufuneka kube khona abantu mihla. Umzekelo, oku kube hairiness nkqi, ubukho ngaphezu kwesinye unamadlala mammary kunye like. D.

Ukubhiyozela kunye nobungqina morphological ukuba izinto zazivelela. Phakathi kwabo ixabiso ekhethekileyo iifom ezidibanisa iimpawu leeyunithi ezinkulu ngendlela. Ukongeza, oosonzululwazi waphawula ukuba ezinye ezinomqolo ncakasana efanayo isakhiwo imilenze ngaphambili, nangona ukuba imisebenzi eyahlukeneyo.

Ubutyebi ngokwesayensi izinto isifundo ngendaleko inika uthelekiso kwimimandla zasendle yendalo. Ukusasazwa iintlobo ezahlukeneyo neentlobo kwi planethi ngakumbi ngokwamaqela ndiwavuze iimeko geographical ibonisa ngokucacileyo uphuhliso yembali zonke izinto eziphilayo.