![Paj Fertilization yog dab tsi? Paj Fertilization yog dab tsi?](https://i.answers-medical.com/preview/medical-health/13993027-what-is-flower-fertilisation-j.webp)
Video: Paj Fertilization yog dab tsi?
![Video: Paj Fertilization yog dab tsi? Video: Paj Fertilization yog dab tsi?](https://i.ytimg.com/vi/TUMkQ1vgRqI/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Paj nroj tsuag tsim pollen, ovules, noob, thiab txiv hmab txiv ntoo. Fertilization tshwm sim thaum ib tug ntawm cov phev hlwb fuses nrog lub qe nyob rau hauv lub ovule. Tom qab fertilization tshwm sim, txhua ovule tsim los ua noob. • Txhua lub noob muaj ib tsob ntoo me me, tsis tau tsim dua tshiab hu ua embryo.
Hauv kev hais txog qhov no, lub qe fertilized hauv lub paj li cas?
Cov paj yog tsim los pib cov txheej txheem ntawm kev yug me nyuam. Cov poj niam qhov chaw yuav tsim lub ovule, lossis tsis muaj menyuam qe . Cov qe (los yog qe ) yuav nyob hauv lub zes qe menyuam thiab tos kom ua fertilized . Cov txiv neej qhov chaw (tshwj xeeb, anther) yuav tsim paj ntoos, uas muaj cov phev uas yuav tsum tau ua fertilize cov qe.
Ib sab saum toj no, paj puas siv sab hauv lossis sab nraud fertilization? Kev sib deev kev sib deev hauv paj ntoo koom nrog kev tsim cov txiv neej thiab poj niam gametes, kev xa cov txiv neej gametes mus rau poj niam ovules hauv cov txheej txheem hu ua pollination. Tom qab pollination tshwm sim, fertilization tshwm sim thiab ovules loj hlob mus ua noob hauv cov txiv.
Kuj kom paub, qhov twg fertilization tshwm sim hauv lub paj?
Fertilization koom nrog hauv zes qe menyuam ntawm poj niam paj . Cov cua los yog cov paj ntoo nqa cov paj ntoos los ntawm cov txiv neej anthers rau poj niam paj ntu. Tom qab cov paj ntoos tsaws rau ntawm qhov qias neeg, lub paj paj paj ntaub ntawv, thiab cov txiv neej cov khoom siv me nyuam yaus taug kev hauv cov style thiab mus rau hauv zes qe menyuam, qhov chaw uas nws fertilizes ovule.
Fertilization luv teb yog dab tsi?
Teb : Fertilization (tseem paub tias yog kev xeeb tub, ua kom muaj menyuam, sib xyaw thiab ua kom tsis muaj menyuam) yog kev sib xyaw ntawm gametes los pib kev txhim kho ntawm tib neeg lub cev tshiab. Hauv cov tsiaj, cov txheej txheem cuam tshuam nrog kev sib xyaw ntawm lub zes qe menyuam nrog cov phev, uas ua ntej tsim lub zygote thiab tom qab ntawd ua rau kev loj hlob ntawm lub embryo.
Pom zoo:
Dab tsi yog lub paj tawg xiav thiab paj yeeb paj yeeb?
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"Blue bloaters" sawv cev rau cov uas muaj mob ntsws ntev thiab "puffers paj yeeb" sawv cev rau cov neeg mob uas mob ntsws. Cov neeg mob uas mob bronchitis yuav muaj cov tsos mob xws li ua tsis taus pa luv, hnoos ntev, ntau cov hnoos qeev thiab hawb pob uas tuaj yeem ua rau pulmonary hypertension
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
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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
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