megasporangium Ib lub hnab spore uas muaj megaspores megaspores Megasporogenesis. Nyob rau hauv gymnosperms thiab paj nroj tsuag, lub megaspore yog tsim nyob rau hauv lub nucellus ntawm lub ovule… Angiosperms nthuav tawm peb tus qauv ntawm megasporogenesis: monosporic, bisporic, thiab tetrasporic, tseem hu ua Polygonum hom, hom Alisma, thiab Drusa. hom, raws. https://en.wikipedia.org › wiki › Megaspore
Megaspore - Wikipedia
. Hauv cov paj ntoo, qhov no hu ua ovule.
lub npe megasporangium yog dab tsi?
Ovules yog cov noob tsis paub tab, muaj cov ceg ntoo, cov funiculus, megasporangium (tseem hu ua cov nucellus), los ntawm kev tsim cov megasporocyte thiab poj niam gametophyte, ntxiv rau ib lossis ob. ib puag ncig integuments.
Megasporangium ntawm cov noob hu ua dab tsi?
Anther
Puas hu ua Integumented megasporangium?
Cov lus teb yog (b) Ovule. … Ovule tseem hu ua integumented megasporangium. Nws muaj nyob rau hauv lub zes qe menyuam uas txuas nrog lub cushion hu ua placenta. Nws muaj ib lub hnab embryo uas tsim los ntawm megaspore los ntawm kev txo qis.
Puas yog ovule thiab megasporangium tib yam?
Teb tiav: > ' Megasporangium' yog sib npaug rau ovule, uas muaj integuments, nucleus, thiab funiculus uas nws txuas nrog lub placenta. Megasporangium nrog rau nws cov kev tiv thaiv npog cov integuments hu ua ovules.
