Atavisms umuntu - abakudingayo

Atavism ungomunye kwezihloko ezithakazelisayo kakhulu futhi engaqondakali isifundo yezinto eziphilayo, kusukela kulolu hlangothi, benza kungenzeka ukuba aqaphele zokuxhumana indlela yomuntu yesimanje nezwe zemvelo, futhi ngakolunye - likwenza kucace ukuthi yiziphi okhokho bethu nendlela abaphila ngayo. Lesi simo esiyingqayizivele sibangelwa abutholakali nawabantu kodwa nawo wonke nabanye abameleli emhlabeni bemvelo, sonke ayashintsha isikhathi ukuze kangcono nezimo ezishintshashintshayo kwemvelo.

Kuyini atavism

Atavism kuyiqiniso nesenzakalo kohlobo oluthile eziphilayo of izimpawu ezihlukahlukene, okuye ebonakala okhokho babo kodwa walahlekelwa ngokusebenzisa ukuziphendukela kwemvelo. Umbala wawo ehlangene yokuthi DNA elahlekile ngokuhamba kwesikhathi, labo zofuzo banesibopho lezizibonakaliso, nakuba ezikhathini eziningi ukubonakaliswa yabo ivinjiwe izakhi zofuzo repressors. Ngakho, uma umphumela repressor ngokuzumayo ubalekela noma lehla, atavism uthengisa abantu futhi iyiphi enye ivele.

Izibonelo atavisms e abantu

Umzimba womuntu uhlelo eziyinkimbinkimbi lapho ingqamuzana ngalinye isetshenziswa ukwenza imisebenzi ethile. Kodwa lapho sifunda eduze kuvela ukuthi lokhu akuhlali, futhi izibonelo atavism human ngokucace ukubonisa.

isithasiselo

Ngokuqinisekile wonke umuntu okungenani kanye empilweni yami wezwa lesi sitho worm-like emathunjini. Ngaphambili, kwakudingekile ukuba ekuqongeleleni kanye yokugcina cellulose futhi iye yaba nesandla inqubo hematopoiesis, ngokunembile ekuthuthukiseni wamangqamuzana egazi amhlophe, kodwa ekugcineni abantu baqala ukudla imikhiqizo sangempela kanye nesidingo isithasiselo wanyamalala. Okwamanje ngokuvamile isizathu ukusebenza ukuze uyisuse ngenxa ukuvuvukala. Kukhona amacala lapho engekho ngokuphelele.

imisipha

Atavism akuyona inkinga njalo umuntu ohlangene izitho ezithile, empeleni kungaba noma iyiphi ingxenye yomzimba. Naphezu kweqiniso lokuthi ukuphila kwakhe kushintshile ngezindlela eziningi, umzimba wakhe usenayo inqwaba imisipha ukuthi basuke ayisasetshenziswa inhloso yazo. Ngokwesibonelo, indoda atavism yikhono ukuvela ukuhambisa okungenani izindlebe kancane, esisebenza isibili engenza okhokho bakhe ukuze uthwebule kangcono umsindo ngenkathi abazingeli. atavism Human futhi ibonakale njengoba ukuba khona subclavian futhi Palmar muscle plantar imisipha, nakuba kokuyisebenzisa ukubhala noma phakamisa izinto ezincane.

coccyx

Ngu atavism lihlanganise nokuba khona coccyx, okumelwe ukuba owake nomsila. Ngezinye izikhathi atavism e abantu kumenze enkingeni kunokuhle, njengoba kunjalo ne coccyx, njengoba mthwalo obusebenzayo akuyikuba, kodwa ephukile noma ilimele buhlungu kakhulu.

ungangena

Umuzwa izikhonkwane kanye izinaliti esikhumbeni kwenzeka abantu ezihlukahlukene ezimweni kuthonywa ezishukumisa zangaphakathi nezangaphandle. Eqinisweni, umuzwa izikhonkwane kanye izinaliti - yilokho impela sibona, isibonelo, amakati nezinja lapho bebona izitha, ukuthi ogcwele. Ngo komuntu kwanamuhla isikhumba nezinwele kakhulu esingaphansi kwamanye ezincelisayo, naphakathi okhokho bakhe, ngakho asikwazi bristle ngokugcwele.

impumulo

Ngokuthi ngalo ingaphakathi acinene akukwazi throwback ephelele, kodwa ngezinye izikhathi atavism kubantu kukhona esinqunyiwe. Iphunga yomuntu yesimanje akuyona cishe kwafana iphunga kayisemkhulu, nakuba namanje abanye abantu ukuhogela Keener kunabanye, siyivumele ukuba asebenze emkhakheni kwamakha futhi babe Ochwepheshe esiyingqayizivele.

Ngezinye izikhathi isayensi ayikwazi ukucacisa ukuthi ingabe uphawu oluthile atavism, kodwa mhlawumbe ngokuhamba kwemvelo, nemvelo kuzoveza kunendoda zonke izimfihlo zakhe. Okwamanje, sonke bayaqagela futhi ngeso lengqondo, enethemba lokuthi isiqinisekiso esizisungulayo.