Kumiswa, Amakolishi namanyuvesi
Ingabe ngaso sonke isikhathi esingesihle - akudingekile?
Ngo ukusetshenziswa kwezincwadi esingesihle - lavelaphi esidlule, uvukile ekuqothulweni. Igama elithi "iminonjana" ngekwesimongcondvo non-begazi kusho esifuze into eye eside kusukela wanyamalala.
Leli gama ezincwadini zesayensi
Esingesihle - kuba isiphawulo ukuthi biology imithi isetshenziswa ukuchaza ingxenye yomzimba noma isitho ukuthi ilahlekelwe incazelo yalo original. Umsebenzi ukuthi wenza lokhu umzimba, lapho besanda samanje izenzakalo ezingokomlando kwezinhlobo akunandaba futhi nguye zisengcupheni yokuqothulwa.
Le catch wukuthi ngokuqiniseka, esingesihle umzimba noma cha, kungaba ezingavamile. Phela, morphology zomzimba, ngisho noma nje eyakhiwe has usayizi encane, lokho akusho ukuthi esiqhubekayo noma esingesihle.
Ezinye izici ze-ukusetshenziswa kwegama elithi
Esikhathini imithombo French yesayensi, lokhu isiphawulo itholakala nencazelo 'abasafufusa, "okungukuthi esingesihle, kodwa benethemba ukuthuthukiswa, kunokuba yokuqothulwa. Ngakwelinye ihlangothi, umuzwa onjalo idluliselwe emagunyeni, kuphumele phylogeny (ngesiNgisi kanye imithombo American), futhi ngalokho kukhona esingesihle - is abasafufusa, kunokusebenza okushiwo ezivamile umqondo.
Nakhululwa ezifundisweni zokucathula umuntu
Ezinye iziphathimandla imfundo kule ukuziphendukela kwemvelo kwezinhlobo ulahlekelwe umsebenzi wabo, kuba ezingadingekile ukushintsha izimo zokuphila.
Kodwa asikwazi ukuthi izitho vestigial babe engenamsebenzi, basheshe washintsha umsebenzi wabo. Izibonelo zinikwa etafuleni.
rudiment | Lo mqeqeshi owake wapheka umsebenzi | isici esithuthukile |
coccyx | kusebentisana ukunyakaza | Ivikela imisipha nemisipha, lesifanele umthwalo wokusabalalisa ku kwebhande okhalo |
Isithasiselo (esithasiselweni) | I Ukugaya fibre kusuka ukudla ezingacubunguliwe | Beka iqala ubuhlobo bokubambisana amagciwane zizalela, ekukhiqizweni kwama-hormone, vitamin K |
Umzimba izinwele ikhava | ukufudumala komzimba, ukuvikelwa isikhumba | Ukuhlanganyela thermoregulation, inabukeni amawala isithiyo ezindaweni lapho umjuluko nezindlala (emakhwapheni, emphethweni inguinal) |
"Ukuhlakanipha kwamazinyo" | Ukugaya ukudla ezingacubunguliwe anolaka | molars esikhundleni esikhulu uma nokulahlekelwa |
epiphysis | Ezisalayo isakhiwo kubhekwe optic ipheshana | Umzimba ezibaluleke kakhulu zokulawula, ezithinta umsebenzi nezindlala |
Ngakolunye uhlangothi, indlebe noma phinda imisipha epicanthus musa imisebenzi ebalulekile manje emzimbeni womuntu.
Iziqalo kanye atavism
Zombili imiqondo le atholakala njengoba ubufakazi yokuziphendukela kwemvelo. Avame udidekile ngoba, eqinisweni, izici ezihlukahlukene lo mkhuba efanayo. Iziqalo, njengoba kushiwo ngenhla, abangewona ampofu noma e beseyizinsana, kodwa evame ukubuzwa yibo bonke abantu kohlobo. Atavisms efanayo nale futhi rudiment, athuthukiswe in the ngokugcwele (umsila, umzimba izinwele ebusweni bomuntu).
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