Indlela yokubhekana nezimo ezimbi zemvelo

Ukuze ukhulume ngendlela yokubhekana nezimo ezimbi, kubalulekile ukuqonda ukuthi kusho ukuthini le ncazelo.

Izimo zemvelo ezingamukelekile

Ngaphansi kwabo kuyisiko ukuchaza inani elingekho ngokwanele lokuswakama, isomiso, ukwehlisa umoya we-oxygen emanzini, inani elincane lokukhanya. Zonke lezi zinkinga ziholela eqinisweni lokuthi umsebenzi obalulekile wokuphila wezinto eziphilayo uphazanyiswa. Ukulwa nezimo ezingalungile kwenziwa ukuze kuxazululwe izinkinga ezinjalo.

Izingozi zezimo ezingathandeki

Emazingeni okushisa aphansi, ingozi yokufa kwemifucumfucu, ama-moles, nezinye izilwane ezihlala kuyo inhlabathi ziyanda. Uma kungabikho okwanele oksijini oqhekekile emanzini, izinhlanzi nezilwane zasemanzini zibulawa. Uma imbewu yezitshalo iwela ngaphansi kokuphefumula kwemimoya ezimweni ezingavumelekile empilweni yabo, azihlwanyeli.

Uma izidalwa zingavumelani nezimo ezintsha, ngeke zinikeze inzalo ephelele. Ukuhluka kuyindawo ekhona kuzo zonke izinto eziphilayo. Ukuguquguquka kokuguqulwa kuyimpahla yenyama engaphansi kwemibandela yangaphandle yemvelo yokushintsha izici zayo. Uma kukhona ushintsho kuma-chromosomes kanye nezakhi zofuzo, khona-ke lokhu kuguquguquka komnotho.

Izici zenguquko

Umzabalazo osufike ngesikhathi futhi osebenza kahle ngokumelene nezimo ezingavumelekile kusenza sikwazi ukuxwayisa ukushintshashintsha kokuguquguquka. Ukwakhiwa kwe-phenotype yezinto eziphilayo kubonakala ngokusebenzisana kwe-heredity yayo - i-genotype - nemibandela yendawo yangaphandle. Ngisho ne-genotype efanayo, kodwa ngaphansi kwezimo ezihlukahlukene zokuthuthuka, umehluko omkhulu phakathi kwezibonakaliso zemvelo kungenzeka.

Ngenxa yokuguquguquka kokuguqulwa, abantu abaningi bakhulisa ukuzivumelanisa kwabo nemvelo yangaphandle, okubaluleke kakhulu ekuchumeni nasekulondolozweni kwezinhlobo ezithile. Ukulwa nemibandela engavumelekile yokusingqongileyo kuhloswe ukuvimbela ukuguqulwa kwezakhi. Ziyizinto ezihlukahluka kwezinye izinto eziphilayo, okubangelwa izinguquko ezinzulu ku-genotype.

Emakhulwini amaningi eminyaka kuye kwaba nokukhethwa kwemvelo okuqhubekayo ekuphilayo. Kuphela kulawo mazinga ajwayele izinguquko emvelweni, kunezibonakaliso ezintsha. Phakathi kwemvelo nezilwane, ubunye (ubudlelwano bobudlelwane) budalwa. UDarwin ubhekene nokukhethwa kwemvelo njengento eyinhloko yokukhiqiza nokulondolozwa kwabantu ngabanye, ngokuvumelana nezimo eziguqulelwe izinguquko. Ukulwa nezimo ezingahle kuyindlela kuphela yokulondoloza izinhlobo ezithile zezinto eziphilayo.

Isiphetho

Umbuzo ophathelene nokulondolozwa kwemvelo yezinhlobonhlobo zezinto eziphilayo usebenza, uvumela ukuthi sikwazi ukuchaza izinto eziningi zemvelo. Ukulwa kanjani nezimo ezingathandeki? Izibonelo ezinikezwe ngezansi zivumela ukuthi sikwazi ukuchaza okuqondile. Ezintabeni kubanda ebusika, ehlobo lapha imimoya ivunguza njalo. Ngenxa yabo, inhlabathi yomile, okuqukethwe komswakama kuyo kuyancipha. Ngakho-ke, ezindaweni ezizintaba kuphela ama-squat, izitshalo eziphansi nezihlahla ezikhulayo.

Amagatsha amahlumela asetshenziswa phansi, izilwane zicindezelwa ematshe, izinyoni zihlabelela, zihlezi phansi komhlaba. Izibhamu ezintabeni azikwenzi iwebhu ephelele, zizama ukufihla ngaphansi kwamatshe, emagumbini amadala. Naphezu kokuthuthukiswa kwezimpande zezitshalo, banezinhlamvu ezincane zamakhasi. Iqhwa lihlanganisa phakathi kweziqu zesitshalo, ukuze entwasahlobo izothola inani lamanzi adingekayo ekukhuleni nasekuthuthukisweni. Njengoba kunezimpande ezengeziwe, ukuthuthukisa izinga lomhlabathi, izitshalo zezintaba zikhula ngokugcwele, futhi zibonakala kahle.