Ifomu kwemvelo

Ngo inqubo kwemvelo emphakathini alondoloze futhi ukuthuthukisa labo bantu abenza kangcono ukuze usinde ingashintshwa kakhulu. Leli gama benza ngesikhathi esisodwa ezivamile uCharles Darwin. Wethula kuye ukuqhathanisa Ukukhetha yokufakelwa , futhi ubonise ukuthi, ngokomthetho, ezimweni zombili, inqubo kuyafana. Umahluko owokuthi e ozazisayo okudingekayo noma cha izakhiwo ezithile - olwenzeka endaweni noma abantu.

Ifomu kwemvelo ihlukaniswa ngesisekelo sokunquma esiningi. typology Yande ezihlongozwayo I. I. Shmalgauzenom. Ukuchaza izinhlobo ukuzihlela nokuzivumelanisa kwemvelo, babusekelwe Indlela Ezisithinta simo esishubile noma ukuzinza esihlobene sabantu. Inombolo yabo umbuzo usaphakama engaphenduliwe. Kodwa ezinkulu e isayensi yemvelo Namanje kubhekwe amafomu alandelayo amathathu kwemvelo: Wokudiliza (okuphazamisayo), umhlahlandlela (ukushayela) neliqinisayo. I genotypes abe izinhlobo ezihlukahlukene ngaphezulu, ngcono inqubo kwenzeka.

Umphumela ka Ukukhetha ashukumisayo kuba ngibopha ayesephambuka izimpawu kuyinsakavukela. Waqale esachazwa Wallace Darwin. Endabeni le inzuzo Ukukhetha kunikezwa lawo abaphiwe izimpawu, ezihamba kakhulu kwelinye direction noma kwenye.

It kubonakala lapho inwetshisiwe noma izinguquko imvelo. Khona-ke izidalwa eziphilayo kufanele ushintshe indlela ethile, ukuba nezimo ezintsha. Ngokwesibonelo, uma ezincelisayo eliwumhlaba bephoqeleka ukuya baphile ngaphansi komhlaba, nemilenze zabo kancane kancane ukuzivumelanisa nezimo ezintsha futhi babe burrowing.

Ifomu ezibangela ukuzinza kwemvelo igxile kulondolozwe abantu abaye babonisa isici esithile nge ngezinga isilinganiso kanyekanye ukuphambuka nalezo ikhatshana kuyinsakavukela. Ngokwesibonelo, maningi amathuba ukusinda izinyoni olunamaphiko ngosayizi ojwayelekile hhayi likhulu kakhulu noma amancane.

Isenzo Ukukhetha okuphazamisayo kuyinto obuhlukile lomthelela odlule ezimbili. Kwenzeka lapho izimo ekahle ukuqhubeka uphawu injalo kakhulu, kodwa hhayi phakathi. Ngenxa yalokho yefomu kokuqala zingase zingaveli wedwa, futhi ngisho abasha abambalwa. Ngakho, Ukukhetha okuphazamisayo kungaba imbangela ngokuphelele entsha, zinhlobo ekhona ngaphambi.

Emvelweni, ngokuvamile isimo lapho omunye futhi ababodwa uhlala ezindaweni ezahlukene. Ngakho, amalungu aso ingashintshwa ukuze yabo ehlukene niches emvelweni.

Isibonelo Ukukhetha okuphazamisayo eyayenziwe olwenziwa liyaziwa zonke ucwaningo nge sezimpukane. Ngemva ngokumitha kwemihlambi ngaphakamisa babe akhethiwe kuphela abantu kokuba noma inombolo enkulu noma ubuncane bristles, la maqembu amabili steel ezisukela isizukulwane wamashumi amathathu, ezihluke kakhulu kunokuba nomunye, nakuba baqhubeka hybridize nge.

Ngaphandle amafomu ezintathu eziyinhloko kubonakala biology, Ukukhetha ngokobulili. Ithonya lakhe kubalulekile. Phela, wonke umuntu akumelwe nje bagcine ngokufuna ukujwayela futhi basinde, kodwa sifana umlingani ukuqhubeka nemindeni yabo.

Kukhona nemibono emibili ukuchaza lo mshini wezenzo kokukhethwa ngokobulili.

Ngokusho insikazi lokuqala ekhetha iduna kakade, ngoba uye wakwazi ukuba sisinde kuze kube ukuvuthwa, naphezu ukubukeka elikhanyayo. Lokhu kusho ukuthi anakho izakhi zofuzo ezinhle futhi babanike isizukulwane esilandelayo.

Umbono wesibili uchaza kukhethwa ngazimbili ezahlukene. Ngokusho kwakhe, nenkanyezi umlingani nabesifazane lokukhetha ukuthi i umbala ezikhangayo, uma sicabangela ukuthi isizukulwane esilandelayo kufanele kube okufanayo kuzo, futhi wakhetha nokuzala.

Ngaphezu emithathu engenhla, kunezinhlobo ngabanye futhi iqembu ukuzihlela nokuzivumelanisa kwemvelo. Izinhloso kuqala ukulondoloza abantu abathile kunezimpawu ukuthi ubavumele ukuba ziqhubeke ziphila, futhi akhona ngaphakathi imiphakathi yabo. Iqembu usungula izinga, ewusizo kubo bonke hlobo.

Zonke izinhlobo ezikhona kwemvelo akuzona nemiyalezo, ngengozi kanye, kodwa kancane kancane, njengoba ezizukulwaneni ngezizukulwane, labantu azigcina izici ezithile.