Video: Dab tsi yog cross section ntawm qia?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Hla ntu ntawm a qia : axis ntawm tsob nroj. Epidermis: txheej txheej ntawm lub qia . Phloem hlab ntsha: cov hlab uas nqa cov kua dej. Pib: central ib feem ntawm qia . Xylem hlab ntsha: woody ib feem ntawm qia.
Yog li ntawd, dab tsi yog qhov hla ntawm cov nroj tsuag?
Hla ntu ntawm lub hauv paus: axis ntawm lub cog uas loj hlob nyob rau hauv opposite kev taw qhia los ntawm qia, tuav lub cog nyob rau hauv qhov chaw thiab absorbs as-ham.
Tsis tas li ntawd, 3 lub luag haujlwm ntawm Stomates yog dab tsi? Stomata (1 ntawm 3 ) Muaj nuj nqi . Duab kab lus: Cov pa roj carbon dioxide nkag mus, thaum dej thiab oxygen tawm, los ntawm nplooj ntawv lub plab . Stomata tswj kev lag luam rau cov nroj tsuag: lawv tso carbon dioxide nyob rau hauv, tab sis lawv kuj cia cov dej muaj nuj nqis khiav dim.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog 4 hom stems?
Muaj plaub hom ntawm herbaceous qia . Cov no yog cov nce toj, qhov muag teev, tubers thiab khiav. Herbaceous qia yog nyias, mos thiab ntsuab xim tshwj tsis yog cov uas loj hlob hauv av, xws li qos yaj ywm thiab dos qia.
Cov qauv ntawm nplooj yog dab tsi?
Tag nrho nplooj muaj tib yam yooj yim qauv - nruab nrab nruab nrab, ntug, leeg leeg thiab petiole. Lub luag haujlwm tseem ceeb ntawm a nplooj yog nqa tawm photosynthesis, uas muab cov nroj tsuag nrog cov zaub mov nws xav tau kom ciaj sia. Nroj tsuag muab zaub mov rau tag nrho lub neej ntawm lub ntiaj teb.
Pom zoo:
Dab tsi yog rau lub tshuab yooj yim thiab cov piv txwv ntawm lawv yog dab tsi?
Cov no yog rau lub tshuab yooj yim: cov nplais, lub log thiab lub qag, qib, lub dav hlau inclined, ntsia hlau, thiab lub log
Kev tshawb fawb txog kev muaj peev xwm yog dab tsi yog dab tsi txawv ntawm nws?
Hom Feasibility. Ntau hom kev ua tau zoo uas feem ntau suav nrog suav nrog kev ua tau zoo, kev ua haujlwm ua tau zoo, thiab kev ua lag luam nyiaj txiag. Kev ua haujlwm muaj peev xwm txheeb xyuas qhov uas yuav tsum tau ua software ua cov kauj ruam los daws teeb meem kev lag luam thiab cov neeg siv khoom xav tau
Dab tsi txaus ntshai zoo kawg li nws yog qhov peb yuav tsum tau khawb trenches thiab sim cov roj npog qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob hauv lub tebchaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi?
Qhov txaus ntshai npaum li cas, zoo heev, zoo kawg yog tias peb yuav tsum tau khawb trenches thiab sim roj-qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob rau hauv ib lub teb chaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi. Nws zoo nkaus li tseem tsis yooj yim dua tias kev sib cav uas twb tau hais tseg hauv txoj cai yuav tsum yog kev ua tsov rog
Dab tsi yog qhov txawv ntawm cross offer thiab counter offer?
Hla muab: Cov no yog cov kev pab uas tog ua rau ib leeg nyob rau hauv ignorance ntawm lwm tus neeg muab. Counter Offer: Ntawm qhov tod tes, nyob rau hauv qhov kev txiav txim muaj qhov tsis lees paub qhov kev lees paub thawj zaug thiab qhov kev thov tshiab tau ua uas xav tau kev lees paub los ntawm thawj tus neeg cog lus ua ntej daim ntawv cog lus tuaj yeem ua
Puas yog exosomes qia hlwb?
Exosomes yog nano-sized vesicles uas muaj cov cim qhia txog kev lom neeg uas cuam tshuam cov cell-cell signaling. Mesenchymal qia hlwb (MSCs) ntseeg tau tias muaj cov nyhuv antitumor thiab nyiam rau lawv cov khoom, xws li lub cev tiv thaiv kab mob thiab muaj peev xwm ua kom muaj zog ntawm cov qog nqaij hlav