2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Stigma: Ib feem ntawm cov tshuaj tua kab uas pollen germinates. Lub zes qe menyuam: Qhov loj me me ntawm cov pistil qhov twg ovules tsim.
Dab tsi yog stigma hauv biology?
stigma. Cov paj ntoos-receptive nto ntawm lub carpel los yog pab pawg ntawm fused carpels, feem ntau yog nplaum. Lub apical kawg ntawm cov style uas tso cov paj ntoos nkag mus rau hauv cov pistil. Ib qho chaw sab nraud tracheal aperture nyob rau hauv lub terrestrial arthropod.
Yim hu ua qias neeg?
Ib tug stigma yog ib feem ntawm paj uas tau paj ntoos los ntawm pollinators xws li ua muv. Lub stigma yog ib feem ntawm cov poj niam cev xeeb tub ib feem ntawm lub paj, lub pistil. Lub stigma yog nyob rau sab saum toj ntawm style. Lub stigma tuaj yeem yog plaub los yog nplaum, los yog ob qho tib si rau ntxiab paj ntoos.
kev qias neeg nyob qhov twg?
Txoj kev qias neeg yog nplaum pob qhov rooj saum lub pob tw. Nws txuas nrog rau qhov ntev, tubelike qauv hu ua style. Cov style ua rau lub zes qe menyuam uas muaj cov poj niam qe qe hu ua ovules. Cov txiv neej qhov chaw yog hu ua stamens thiab feem ntau nyob ib puag ncig lub pistil.
kev qias neeg thiab nws txoj haujlwm yog dab tsi?
Lub stigma nyob rau hauv lub gynoecium ntawm lub paj. Nws lub luag haujlwm tseem ceeb yog txhawm rau nyiam cov paj paj ntoo los ntawm huab cua nrog nws cov nplaum nplaum rau kev yug me nyuam los ua qhov chaw.
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.
Tsob nroj plaub hau yog dab tsi?
Deschampsia yog ib hom nroj tsuag hauv tsev neeg nyom, feem ntau hu ua cov nyom nyom lossis tussock nyom. Lub genus yog dav thoob plaws ntau lub tebchaws. Lub genus muaj npe rau tus kws kho mob Fab Kis thiab tus kws tshaj lij Louis Auguste Deschamps.
Nyob rau hauv vernalisation flowering nyob rau hauv cov nroj tsuag yog?
Vernalization (los ntawm Latin vernus, "ntawm lub caij nplooj ntoos hlav") yoginduction ntawm cov nroj tsuag flowering txheej txheem los ntawm raug rau lub caij txias ntawm lub caij ntuj no, los yog los ntawm ib qho khoom sib npaug.
Nyob rau hauv daim siab detoxifying enzymes nyob rau hauv dab tsi organelle?
Cov enzymes uas tsim cov lipid Cheebtsam ntawm lipoproteins nyob rau hauv daim nyias nyias ntawm ER smooth ER Lub du endoplasmic reticulum tsis muaj ribosomesthiab ua haujlwm hauv lipid synthesis tab sis tsis metabolism, kev tsim cov tshuaj hormones steroid, thiab detoxification.
Dab tsi yog tsob nroj hydroelectric?
Hydroelectricity, lossis hydroelectric zog, yog hluav taws xob tsim los ntawm hydropower. Hauv xyoo 2015, lub zog hluav taws xob tau tsim tawm 16.6% ntawm lub ntiaj teb hluav taws xob tag nrho thiab 70% ntawm tag nrho cov hluav taws xob txuas ntxiv, thiab xav tias yuav nce li ntawm 3.
