Nyob hauv cov qauv nyom zoo ib yam li 2nd cotyledon yog?

Cov txheej txheem:

Nyob hauv cov qauv nyom zoo ib yam li 2nd cotyledon yog?
Nyob hauv cov qauv nyom zoo ib yam li 2nd cotyledon yog?

Video: Nyob hauv cov qauv nyom zoo ib yam li 2nd cotyledon yog?

Video: Nyob hauv cov qauv nyom zoo ib yam li 2nd cotyledon yog?
Video: Siab xav ib yam - Cover: Pov Thoj & Zoo Xyooj 2024, Hlis ntuj nqeg
Anonim

qhov seem ntawm ob cotyledon tshwm sim hauv qee cov nyom hu ua scutellum.

Koj hu dab tsi uas seem ntawm ob lub cotyledon hauv nyom?

Cov seem ntawm ob cotyledon tshwm sim hauv qee cov nyom nws hu ua. scutellum.

Yuav ua li cas cov nroj tsuag hu ua cotyledon?

Nyob hauv tsev neeg nyom, cotyledon hu ua Scutellum.

Cov nroj tsuag twg muaj 2 cotyledon?

Yog tias ob lub cotyledons tshwm rau hauv cov noob germinating, cov nroj tsuag tau hais tias yog dicot lossis dicotyledonous. Cov nroj tsuag no muaj lub ntsej muag zoo li lub paj npaj thiab lawv cov nplooj muaj cov hlab ntsha. Yog li, lo lus teb raug yog B . Dicots.

Qhov twg ntawm embryo sawv cev rau vestiges ntawm ob cotyledon?

Lub Epiblast tam sim no hauv qee qhov monocot embryo sawv cev (d) cotyledon thib ob. Kev piav qhia: Qhov thib ob cotyledon ntawm dicots feem ntau hu ua endosperm, uas nourishes lub cotyledon loj hlob los yog zygote.

Pom zoo: