Puas yog megasporangium thiab ovule tib yam?

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Puas yog megasporangium thiab ovule tib yam?
Puas yog megasporangium thiab ovule tib yam?

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Video: Puas yog megasporangium thiab ovule tib yam?
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'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.

YPuas yog ovule a Megasporangium?

Lub ovule zoo li yog a megasporangium nrog integuments ncig nws. … Megaspores nyob hauv lub ovule thiab faib los ntawm mitosis los tsim cov poj niam haploid gametophyte lossis megagametophyte, uas tseem nyob hauv lub ovule. Cov seem ntawm cov ntaub so ntswg megasporangium (lub nucellus) ncig lub megagametophyte.

Puas yog embryo sac thiab ovule tib yam?

Embryo sac is ib feem ntawm ovule.

Yuav muaj pes tsawg lub qe nyob rau hauv lub embryo sac?

Lub embryo sac lossis uas tseem hu ua poj niam gametophyte yog ib qho qauv oval uas nyob hauv lub ovule ntawm cov paj ntoo. - Tsuas muaj ib qe nyob rau hauv ib lub hnab embryo.

Vim li cas lub ovule hu ua Megasporangium?

'Megasporangium' yog sib npaug rau ovule, uas muaj integuments, nucleus, thiab funiculus uas nws txuas nrog placenta… Integuments tshwm sim hauv micropyle, thaum lub sij hawm fertilization pollen tubes nkag mus rau lub ovule los ntawm qhov qhib hu ua micropyle. Yog li, lub ovule yog ib qho integument megasporangium. >

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