2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Anthers yog qhov tseem ceeb ntawm cov menyuam yaus ntawm lub paj uas yog lub luag haujlwm rau kev tawg ntawm txiv neej gametes. Nws tseem hu ua pollen muaj chav tsev. Nws muaj nyob hauv cov stamens ntawm angiosperms. Nws tau txais kev txhawb nqa los ntawm ib qho filament lossis stalk uas yog cov xov zoo li cov qauv.
qhov chaw ntawm anther yog dab tsi?
Teb: anther nyob saum lub filament ntawm tus txiv neej qauv hu ua stamen.
Anther function yog dab tsi?
Lub anther yog txiv neej lub cev xeeb tub hauv cov noob nroj tsuag. Nws lub luag haujlwm tseem ceeb yog los tsim thiab tawg paj ntoos.
lub anther thiab filament nyob qhov twg?
Cov txiv neej ntawm lub paj yog hu ua stamens thiab yog ua los ntawm lub anther nyob rau saum toj thiab stalk los yog filament uas txhawb lub anther. Cov poj niam cov ntsiab lus yog sib sau ua ke hu ua pistil. Sab saum toj ntawm cov pistil yog hu ua stigma, uas yog ib qho nplaum nplaum rau paj ntoos.
Yuav ua li cas hauv lub anther?
Lub anther muaj plaub lub qauv saclike (microsporangia) uas tsim paj ntoos rau pollination. Cov qauv me me, hu ua nectaries, feem ntau pom ntawm lub hauv paus ntawm stamens; Lawv muab khoom plig khoom plig rau kab thiab noog pollinators.
Pom zoo:
Qhov khoom nyob rau pem hauv ntej ntawm lub lens diverging nyob qhov twg?
Teb: Dav hlau daim iav Dav Hlau Daim iav Rau lub teeb rays tawm lub dav hlau daim iav, lub lub kaum sab xis ntawm kev xav sib npaug ntawm lub kaum sab xis ntawm qhov xwm txheej. … Daim duab tsim los ntawm daim iav dav hlau yog ib txwm virtual (lub ntsiab lus tias lub teeb rays tsis yog los ntawm daim duab), upright, thiab ntawm tib lub duab thiab loj npaum li cov khoom nws yog reflecting.
Qhov chaw ncig tebchaws nyob hauv bhagalpur nyob qhov twg?
Bhagalpur faib lub zos yog ib pawg tswj hwm thaj chaw ntawm Bihar xeev ntawm Is Nrias teb, nrog Bhagalpur ua thawj coj hauv paus chaw haujlwm. Raws li xyoo 2005, qhov kev faib muaj xws li Bhagalpur koog tsev kawm ntawv, thiab Banka koog tsev kawm ntawv thiab nyob rau ntawm ntug dej ntawm Ganga River.
Kev tsis ncaj ncees nyob qhov twg yog qhov hem rau kev ncaj ncees nyob txhua qhov chaw?
Martin Luther King tau hais tias: “Kev tsis ncaj ncees nyob txhua qhov chaw yog kev hem thawj rau kev ncaj ncees nyob txhua qhov chaw. Peb raug ntes nyob rau hauv ib tug inescapable network ntawm kev sib nrig sib pab, khi nyob rau hauv ib lub tsoos tsho ntawm txoj hmoo.
Qhov twg yog qhov tsis txaus ntseeg nyob qhov twg?
Yuav muaj ob lub cev tsis zoo nyob rau hauv lub midbrain. Lawv yog symmetrically positioned, ib tug nyob rau ntawm ob sab ntawm lub midline ntawm lub hlwb, thiab lawv tsim ob lub pob nyob rau hauv lub posterior nto ntawm lub paj hlwb nyob rau hauv qab ntawm lub superior colliculi.
Qhov twg tag nrho cov nqi hluav taws xob nyob ntawm qhov kev siv nyiaj siab tshaj plaws yog qhov twg?
marginal utility is zero. Tag nrho cov nqi hluav taws xob yog siab tshaj thaum marginal utility yog xoom. Qhov no yog vim muaj ntau txoj cai ntawm kev txo qis marginal utility uas hais tias tus neeg siv khoom noj ntau thiab ntau qhov zoo, qhov ntxiv rau tag nrho cov nqi hluav taws xob poob.
