Bryophytes muaj lub cev cog raws li haploid gametophyte. Nws yuav tsum tau immersion nyob rau hauv dej nto rau conduction thiab txav cov phev. … Li no, txawm hais tias bryophytes thiab pteridophytes ob leeg loj hlob rau hauv av thiab xav tau dej rau fertilization, tsuas yog bryophytes hu ua amphibians ntawm tsob nroj lub nceeg vaj.
Pteridophytes ua li cas rov tsim dua?
Pteridophytes reproduce sexually through spores. Lub sporophyte ntawm pteridophytes nqa lub sporangia uas yuav tawg qhib thaum lub spores matured. Cov spores mature no germinate los ua gametophyte.
Vim li cas muaj dej yuav tsum tau Fertilization hauv pteriophytes?
Cov kab mob sib deev ntawm pteridophytes yog antheridia. Cov antheridia tsim cov txiv neej gametes uas yog flagellated antherozoids. Lawv tau dim hauv dej thiab ua luam dej kom ncav cuag archegonia. … Yog li, fertilization tuaj yeem tshwm sim tsuas yog thaum muaj dej nyob hauv nruab nrab ib puag ncig.
Vim li cas bryophytes thiab pteridophytes xav tau dej los yug me nyuam?
Pimitive bryophytes zoo li mosses thiab liverworts me me uas lawv tuaj yeem tso siab rau diffusion txav dejhauv thiab tawm ntawm cov nroj tsuag. … Bryophytes kuj xav tau ib qho chaw ntub dej kom rov tsim dua. Lawv cov phev flagellated yuav tsum ua luam dej hauv dej kom ncav cuag lub qe. Yog li mosses thiab liverworts raug txwv rau qhov chaw noo noo.
Yuav ua li cas yug tsis xav tau dej?
Angiosperms tsis xav tau dej rau fertilization vim lawv vam khom lwm yam kev thauj phev.
