2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Bryophytes yog gametophyte dominant, txhais tau hais tias qhov tseem ceeb tshaj, cov nroj tsuag ntev dua yog cov haploid gametophyte. … Nyob rau hauv bryophytes, cov sporophytes yeej ib txwm unbranched thiab tsim ib zaug xwb sporangium (spore tsim capsule), tab sis txhua gametophyte tuaj yeem ua rau ntau tus sporophytes ib zaug.
Vim li cas sporophyte yog qhov tseem ceeb hauv bryophytes?
Cov nplooj ntsuab ntsuab uas peb pom thaum peb saib cov moss lossis lub cev nqaij daim tawv yog qhov gametophyte tiag tiag, uas yog theem tseem ceeb hauv txhua bryophytes. Cov sporophytes ntawm bryophytes tsis muaj kev nyob dawb. … Vim tias cov nroj tsuag twb haploid lawm, cov gametes no tuaj yeem tsim los ntawm mitosis, kev faib cell yooj yim.
YPob bryophytes puas muaj lub cim tseem ceeb sporophyte?
Nyob rau hauv bryophytes (mosses thiab liverworts), lub cim tseem ceeb yog haploid, kom gametophyte suav nrog qhov peb xav tias yog cov nroj tsuag loj. Qhov opposite yog muaj tseeb rau tracheophytes (vascular nroj tsuag), nyob rau hauv uas lub diploid tiam yog dominant thiab sporophyte muaj xws li cov nroj tsuag loj.
Nyob rau hauv qhov twg sporophyte yog dominant?
Ib qho kev ywj pheej sporophyte yog daim ntawv tseem ceeb hauv txhua qhov clubmosses, horsetails, ferns, gymnosperms, thiab angiosperms uas tau muaj sia nyob rau niaj hnub no.
Puas bryophytes haploid dominant?
Nyob hauv bryophytes (liverworts, hornworts, thiab mosses), gametophyte theem yog dominant. Nplooj nploojcov qauv ntsuab peb paub (Daim duab hauv qab no) yog haploid, thiab ua feem ntau ntawm photosynthesis.
Pom zoo:
Yuav bryophytes puas muaj sia nyob hauv lub ntiaj teb sov?
Bryophytes muaj qhov ntsuas kub tsis zoo rau photosynthesis. Qhov ntau ntawm qhov kub thiab txias rau net photosynthetic nce ntawm bryophytes yog qhov nqaim. Bryophytes yog rhiab heev rau qhov kub siab hauv hydrate xeev. … Kev poob qis ntawm bryophyte ntau haiv neeg yuav ua rau muaj kev hloov pauv ntawm ecosystems.
Puas yog sab laug sab xis lub hlwb dominant?
Tshwj xeeb, nyob rau sab laug tes, lub cev muaj zog cortex nyob rau sab xis ntawm lub hlwb (sab laug ntawm lub cev yog tswj los ntawm sab xis ntawm lub hlwb, thiab rov ua dua) yog qhov tseem ceeb rau kev coj cwj pwm zoo. Nyob rau hauv sib piv, nyob rau hauv txoj cai-handers, sab laug lub cev muaj zog cortex yog zoo dua nyob rau hauv zoo lub cev muaj zog ua hauj lwm xws li kev sau ntawv.
Puas yog piebald spotting dominant lossis recessive?
Piebald noob yog recessive to dominant S (tsis-dawb) noob. piebald spotting yog dab tsi? Cov dev uas tej zaum yuav muaj lub tsho loj lossis ntau lub tsho, feem ntau hu ua piebald yoglawv lub cev yuav luag dawb tag nrho los yog lwm yam xim uas muaj qhov pom thiab thaj ua rau ntawm lub taub hau thiab caj dab.
Pob bryophytes puas muaj cov ntaub so ntswg?
Mosses thiab liverworts yog lumped ua ke li bryophytes, nroj tsuag tsis muaj tseeb vascular cov ntaub so ntswg, thiab sib koom ib tug xov tooj ntawm lwm yam primitive zoo. Lawv kuj tsis muaj tseeb stems, cov hauv paus hniav, los yog nplooj, txawm tias lawv muaj cov hlwb uas ua cov haujlwm no.
Puas yog strobilus sporophyte lossis gametophyte?
Strobilus yog cov kabmob spore yog li nws yog sporophyte tiam. Nws yog tam sim no nyob rau hauv ntau hom ntawm terrestrial nroj tsuag thiab nws muaj sporangia. Nws kuj yog feem ntau hu ua cone. Tus txiv neej strobilus muaj microsporophylls uas dais microsporangia thiab tsim microspores los ntawm meiosis.
