2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov kab ke sib txuas yog tus qauv elongated yam tsis muaj kev sib txawv rau hauv stigma, style thiab zes qe menyuam. Ntau cov ovules tshwm sim nyob rau hauv kab longitudinal raws phab ntsa zes qe menyuam. Ntau papillae muaj nyob rau ntawm cov npoo ntawm lub folded lamina. … Pollen tube loj hlob los ntawm papilla uas ua raws li stigmatic nto.
Peb hom carpel yog dab tsi?
Carpels muaj peb qhov tseem ceeb: Lub zes qe menyuam muaj cov ovules, tus qauv los ntawm cov kab paj ntoos loj hlob, thiab qias neeg uas cov paj ntoos tawg.
carpel thiab Locule yog dab tsi?
yog locule yog (zoology) me ntsis hollow; ib loculus thaum carpel yog ib qho ntawm cov poj niam cev xeeb tub hauv ib leegpaj carpel yog tsim los ntawm zes qe menyuam, hom, thiab qias neeg, txawm tias qee lub paj muaj carpels tsis muaj qhov txawv hauv keeb kwm., carpels yog nplooj (megasporophylls) uas tau hloov mus rau…
YPuas yog ib lub carpel yog Sporophyll?
yog tias megasporophyll yog a sporophyll uas dais megasporangia thaum carpel yog ib qho ntawm tus poj niam cev xeeb tub hauv lub paj carpel yog tsim los ntawm zes qe menyuam, hom, thiab ib qho stigma, txawm hais tias qee lub paj muaj carpels tsis muaj qhov txawv hauv keeb kwm, carpels yog nplooj (megasporophylls) uas muaj …
Thaum carpel dawb lawv hu?
Type. Yog hais tias ib tug gynoecium muaj ib tug carpel, nws yog hu ua monocarpous. Yog tias gynoecium muaj ntau yam,txawv (dawb, unfused) carpels, nws yog apocarpous. Yog hais tias ib tug gynoecium muaj ntau carpels "fused" rau hauv ib tug qauv, nws yog syncarpous.
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Canon xim txuam yog dab tsi?
Siv cov xim sib txuam ua haujlwm, koj tuaj yeem kho cov xim ntawm cov ntawv luam tawm kom zoo dua cov xim you pom ntawm qhov screen. Kho xim los ntawm Kho qhov ci ntsa iab (Gamma Kho) Koj tuaj yeem kho qhov ci ntsa iab ntawm cov ntawv luam tawm yam tsis ua rau lub teeb pom kev zoo thiab qhov tsaus ntuj ntawm cov ntaub ntawv duab.
Lub sijhawm meiosis yuav ua li cas rau qhov sib txuam x-shaped chromosomes?
Ua ntej, txhua tus chromosome ua ib daim qauv ntawm nws tus kheej, khaws nws txuas ntawm ib qho. Lawv condense, tsim ib tug X-puab. Tam sim no cov neeg koom tes chromosome tau ua ke thiab ob, los yog plaub, yuav puag. … Qhov kawg tshwm sim yog phev los yog lub qe qe nrog 23 chromosomes, ib nrab tus lej.
Lub sijhawm fracking dab tsi yog muab rho tawm los ntawm qhov tsis sib haum xeeb sib sib zog nqus?
Hydraulic fracturing - feem ntau hu ua fracking - yog txheej txheem siv los rho tawm shale gas. Cov qhov tob yog drilled mus rau hauv lub pob zeb shale, ua raws li kab rov tav drilling kom nkag tau ntau dua ntawm cov roj reserves, raws li shale reserves feem ntau faib horizontally es vertically.
Dab tsi yog qhov sib npaug ntawm kab rau kev sib raug zoo tsis sib haum?
Thaum nws los txog rau kev teeb tsa kev sib raug zoo tsis sib xws, nws yuav pab tau kom paub txog ob peb yam ntxwv ntawm kab zauv y=mx + b. Hauv kab zauv no, m yog sib npaug rau txoj kab nqes. Yuav ua li cas yog qhov sib npaug ntawm kev sib raug zoo?
