Tsim, Tsev kawm ntawv qib thiab universities
Yog nws yeej ib txwm rudimentary - nws yog ruaj?
Nyob rau hauv cov zajlus siv rudimentary - nws tuaj ntawm yav dhau los, sawv los ntawm oblivion. Lo lus "ncau" nyob rau hauv uas tsis yog-lom yog txhais hais tias ib tug tej yam qub qab ntawm ib tug tshwm sim uas tau ntev txij li thaum zoo.
Lo lus nyob rau hauv cov ntawv nyeem
Rudimentary - nws yog ib qho chaw uas nyob rau hauv ib thiab tshuaj no yog siv los piav qhia txog ib lub cev ib feem los yog hloov khoom nruab nrog uas tau poob nws cov thawj lub ntsiab lus. Cov nuj nqi uas ua lub cev, nyob rau tam sim theem ntawm cov keeb kwm kev loj hlob ntawm lub hom yog tsis tseem ceeb thiab nws yog nyob ze rau extinction.
Lub catch yog tias hais rau paub hais tias, rudimentary ib lub cev los yog tsis yog, nws yuav ua tau tsis tshua muaj. Tom qab tag nrho, lub morphology ntawm lub cev, txawm yog hais tias nws yog tsuas ua tau lub tsev thiab muaj ib tug me me luaj li cas, tsis txhais hais tias nws yog hnyav los yog rudimentary.
Ib co nta ntawm kev siv ntawm lub sij hawm
Nyob rau hauv lub Fabkis scientific qhov chaw, qhov no chaw yog nyob rau hauv cov ntsiab lus ntawm "hnubpoob," uas yog rudimentary, tab sis, nrog lub zeem muag ntawm txoj kev loj hlob, es extinction. Nyob rau hauv lem, xws li ib tug kev txiav txim zoo pauv mus rau cov tub ceev xwm, uas ua nyob rau hauv lub phylogeny (nyob rau hauv lus Askiv thiab American qhov chaw), thiab chaw pib muaj rudimentary - yog tawm, raws li txwv mus rau cov pa ntsiab lus ntawm lub tswvyim.
Lub rudiments ntawm ib tug neeg
Ib txhia kev kawm ntawv cov tub ceev xwm thiab nyob rau hauv lub evolutionary txoj kev loj hlob ntawm lub hom poob lawv muaj nuj nqi, nws yuav ruaj mus hloov cov nyob tej yam kev mob.
Tab sis peb tsis tau hais tias cov vestigial kabmob ua puas, lawv sai sai hloov lawv muaj nuj nqi. Piv txwv yog muab nyob rau hauv lub rooj.
rudiment | Cov yav tas los muaj nuj nqi | advanced feature |
coccyx | kev sib koom tes ntawm taw | Phiaj rau cov nqaij ntshiv thiab ligaments, yog load tis rau cov pelvic nws daim siv sia |
Lus Qhia Ntxiv (appendix) | Lub plab zom mov ntawm fiber los ntawm cav ntoo khoom noj khoom haus | Muab symbiotic cov kab mob yug me nyuam rau, zus tau tej cov tshuaj hormones, vitamin K |
Lub cev plaub hau cover | lub cev sov so, daim tawv nqaij tiv thaiv | Kev Koom Tes nyob rau hauv thermoregulation, pob tw ntse lub chaw khuam siab nyob rau hauv lub qhov chaw uas muaj hws qog (qhov tso, inguinal folds) |
"Txawj Ntse hniav" | Sib Tsoo ntxhib cav ntoo khoom noj khoom haus | Hloov loj hniav puas nyob rau hauv cov ntaub ntawv ntawm tsis |
epiphysis | Residue xam tau tias yog tus qauv optic huam | Qhov tseem ceeb tshaj ntxawg lub cev, rau cov ua hauj lwm ntawm cov qog |
Nyob rau lwm cov tes, pob ntseg los yog quav epicanthus nqaij tsis ua haujlwm tseem ceeb yog tam sim no nyob rau hauv tib neeg lub cev.
Thiab nraws npaum licas atavism
Ob yam no tswv yim muaj nyob raws li pov thawj ntawm evolution. Lawv feem ntau tsis meej pem, vim hais tias nws yog, nyob rau hauv qhov tseeb, qhov sib txawv kev seevcev ntawm tib phenomenon. Rudiments, raws li hais saum toj no, yog underdeveloped los yog nyob rau hauv lawv cov mos liab, tab sis cov kev ua txhua tus neeg ntawm ib tug tsiaj. Atavisms tib yog tsawg tsawg thiab yog rudiment, tsim nyob rau hauv lub siab (tus Tsov tus tw, lub cev plaub hau rau ib tug neeg lub ntsej muag).
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