![Puas yog sab nraud fertilization asexual? Puas yog sab nraud fertilization asexual?](https://i.answers-medical.com/preview/medical-health/13841281-is-external-fertilization-asexual-j.webp)
Video: Puas yog sab nraud fertilization asexual?
![Video: Puas yog sab nraud fertilization asexual? Video: Puas yog sab nraud fertilization asexual?](https://i.ytimg.com/vi/i9zj9V8OWRk/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hauv asexual tu tub tu kiv , ib tus neeg tuaj yeem rov tsim dua yam tsis muaj kev koom tes nrog lwm tus neeg ntawm hom tsiaj ntawd. Thaum sib deev luam tawm , txiv neej gamete (phev) tej zaum yuav muab tso rau hauv tus poj niam lub cev rau sab hauv fertilization , lossis cov phev thiab qe tuaj yeem tso rau hauv ib puag ncig rau sab nraud fertilization.
Yooj yim li ntawd, puas fertilization tshwm sim hauv asexual tu tub?
Poj niam deev txiv neej koom nrog ib tus niam txiv thiab tsim cov xeeb leej xeeb ntxwv uas zoo ib yam rau ib leeg thiab rau niam txiv. Thaum sib deev luam tawm , ob haploid gametes koom nrog hauv cov txheej txheem ntawm fertilization los tsim cov diploid zygote. Meiosis yog hom kev faib xovtooj ntawm tes uas tsim gametes.
Kuj Paub, yam tsiaj twg tuaj yeem tsim tawm asexually? Tsiaj txhu yug me nyuam asexually suav nrog planarians, ntau cov kab mob hu ua annelid suav nrog polychaetes thiab qee cov oligochaetes, turbellarians thiab hnub qub hiav txwv. Ntau cov kab thiab cov nroj tsuag rov tsim dua asexually . Qee cov nroj tsuag muaj cov qauv tshwj xeeb rau luam tawm ntawm kev faib tawm, xws li gemmae hauv daim siab.
Tom qab ntawd, lo lus nug yog, puas yog cov qe qe fertilized sab nraud?
Sab hauv Fertilization Hauv oviparity, fertilized qe raug tso tawm sab nraum tus poj niam lub cev thiab txhim kho nyob ntawd, tau txais kev noj haus los ntawm cov qe uas yog ib feem ntawm lub qe. Qhov no tshwm sim hauv cov ntses feem ntau, ntau cov tsiaj reptiles, qee cov ntses cartilaginous, feem ntau amphibians, ob hom tsiaj, thiab txhua yam noog.
Dab tsi yog qee qhov piv txwv ntawm kev cog qoob loo sab nraud?
Salmon, ntses, ntses, thiab char yog txhua yam piv txwv ntawm cov zib li sab nrauv fertilize . Cov poj niam thiab txiv neej ob leeg tso lawv cov gametes rau hauv cov dej, qhov uas lawv diffuse ua ke thiab fertilize.
Pom zoo:
Thaum lub diaphragm thiab cov leeg sab nraud sab nraud sib cog lus?
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Thaum daim diaphragm sib cog lus, nws txav qis dua mus rau lub plab kab noj hniav, tsim kom muaj kab noj hniav loj dua thiab ntau qhov chaw rau lub ntsws. Kev txo qis ntawm cov leeg sab hauv sab nraud txav cov tav mus rau sab nraud thiab sab nraud, ua rau lub pob tawb nthuav dav, uas ua rau nce ntim ntawm lub plab thoracic kab noj hniav
Dab tsi yog ob lub fertilization piav qhia txheej txheem ntawm ob zaug fertilization?
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Ob chav fertilization yog ib tug complex fertilization mechanism ntawm flowering nroj tsuag (angiosperms). Cov txheej txheem no koom nrog cov poj niam gametophyte (megagametophyte, tseem hu ua embryo sac) nrog ob tug txiv neej gametes ( phev ). Qee cov nroj tsuag tuaj yeem tsim polyploid nuclei
Yog vim li cas fertilization sab nraud tsis zoo rau cov tsiaj ntau dua li fertilization sab hauv?
![Yog vim li cas fertilization sab nraud tsis zoo rau cov tsiaj ntau dua li fertilization sab hauv? Yog vim li cas fertilization sab nraud tsis zoo rau cov tsiaj ntau dua li fertilization sab hauv?](https://i.answers-medical.com/preview/medical-health/13963833-why-is-external-fertilization-disadvantageous-to-animals-than-internal-fertilization-j.webp)
Vim hais tias tus txiv neej ncaj qha tso cov phev mus rau hauv poj niam lub cev, tsawg gametes yuav tsum tau. Kev cog qoob loo sab nrauv xav kom txiv neej thiab poj niam tsiaj tsim cov lej loj ntawm gametes. Ua kom muaj ntau qhov gametes xav tau lub zog ntxiv, uas tuaj yeem ua rau cov tsiaj tsis zoo
Kev ua pa sab hauv thiab sab nraud yog dab tsi?
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Kev ua pa sab hauv yog kev hloov roj ntawm cov ntshav thiab cov hlwb. Kev ua pa sab nraud kuj tseem hu ua kev nqus pa yog hais txog txheej txheem nqus cov pa oxygen los ntawm huab cua mus rau hauv lub ntsws thiab tso cov pa roj carbon dioxide los ntawm lub ntsws mus rau huab cua. Kev sib pauv roj cua hauv thiab tawm ntawm cov ntshav tshwm sim ib txhij
Dab tsi yog sab nraud sab nraud?
![Dab tsi yog sab nraud sab nraud? Dab tsi yog sab nraud sab nraud?](https://i.answers-medical.com/preview/medical-health/14116472-what-are-external-nares-j.webp)
Sab nraud. Qhov qhib sab nraud ua rau hauv qhov ntswg kab noj hniav; kuj hu ua lub qhov ntswg