Cov txheej txheem:
- Yuav ua li cas yog cov enamel?
- Aprismatic enamel yog dab tsi?
- Prismless enamel pom nyob qhov twg?
- Vim li cas enamel tufts tsim?
![Interprismatic tshuaj nyob rau hauv enamel? Interprismatic tshuaj nyob rau hauv enamel?](https://i.boatexistence.com/preview/questions/18768284-interprismatic-substance-in-enamel-j.webp)
Video: Interprismatic tshuaj nyob rau hauv enamel?
![Video: Interprismatic tshuaj nyob rau hauv enamel? Video: Interprismatic tshuaj nyob rau hauv enamel?](https://i.ytimg.com/vi/-0F18KWCpsE/hqdefault.jpg)
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Cov enamel muaj cov enamel prisms, ntau dua los yog tsawg dua sib cais los ntawm ib leeg los ntawm ib qho khoom sib txuas. Ib nrab decalcified interprismatic tshuaj yog basophile, homogeneous, thiab pob tshab.
Yuav ua li cas yog cov enamel?
Enamel Composition. Enamel muaj tshaj 95 wt% (carbonated) apatite, calcium phosphate ntxhiauas tuaj yeem pom hauv txhua cov ntaub so ntswg hauv cov pob txha (3). Apatite crystals loj hlob feem ntau raws lawv c axis, yog li nthuav tawm cov duab elongated.
Aprismatic enamel yog dab tsi?
Ib txheej txheej ntawm cov hniav, xav tias yuav muaj zog yam tsis muaj tus enamel rods lossis prisms.
Prismless enamel pom nyob qhov twg?
Ib txheej ntawm pom meej "prismless" enamel tau pom ntawm tag nrho cov hniav deciduous thiab ntawm 70 feem pua ntawm cov hniav tas mus li.
Vim li cas enamel tufts tsim?
Lawv tsim tau raug ntaus nqi rau kev nyuaj siab thiab suav tias yog daim ntawv tsis raug. Txawm li cas los xij, kev ntxhov siab ntawm cov enamel tsis xav tau los tsim lawv txij li thaum lawv tshwm sim hauv cov molars thib peb uas tsis cuam tshuam los ntawm kev quab yuam.
Pom zoo:
Nyob rau hauv av worm copulatory papillae muaj nyob rau hauv ntu?
![Nyob rau hauv av worm copulatory papillae muaj nyob rau hauv ntu? Nyob rau hauv av worm copulatory papillae muaj nyob rau hauv ntu?](https://i.boatexistence.com/preview/questions/18672902-in-earthworm-copulatory-papillae-are-present-in-segment-j.webp)
Genital papillae yog ob khub ntawm protuberances ntawm ntu 17 thiab 19 ntawm qhov chaw ventralTxhua papilla dais lub khob ntiav zoo li kev nyuaj siab nyob rau sab saum toj uas ua haujlwm zoo li nqus thaum lub sijhawm sib sau. Ntawm ntu 18 muaj ib khub txiv neej qhov chaw mos qhib rau ntawm sab ventral .
Leej twg lub cev nyob rau hauv lub qab nthab nyob rau hauv keeb kwm?
![Leej twg lub cev nyob rau hauv lub qab nthab nyob rau hauv keeb kwm? Leej twg lub cev nyob rau hauv lub qab nthab nyob rau hauv keeb kwm?](https://i.boatexistence.com/preview/questions/18681756-whos-body-was-in-the-attic-in-hereditary-j.webp)
Charlie lub taub hau raug txiav tawm, yog li lub cev ntawm pog– muab tso rau hauv Graham lub tsev pheeb suab los ntawm cov tswv cuab ntawm kev ntseeg - zoo li decapitated, thiab Annie, thaum muaj kev cia siab, pom ntab rau hauv rafters thiab txiav nws lub taub hau tawm (lub sijhawm uas tau muab rau kuv npau suav phem tshaj plaws) .
Nyob rau hauv cov qoob loo cog qoob loo xaiv siv nyob rau hauv?
![Nyob rau hauv cov qoob loo cog qoob loo xaiv siv nyob rau hauv? Nyob rau hauv cov qoob loo cog qoob loo xaiv siv nyob rau hauv?](https://i.boatexistence.com/preview/question-answer/18703388-in-crop-plants-clonal-selection-is-used-in.webp)
Clonal xaiv yog txoj kev xaiv ntawm kev ntshaw clones los ntawm cov pejxeem sib xyaw ntawm cov qoob loo vegetatively propagated. Nws yog ib txoj hauv kev txhim kho cov qoob loo vegetatively propagated xws li qab zib, txiv tsawb, qos yaj ywm, citrus, txiv nkhaus taw, thiab lwm yam .
Nyob rau hauv russia huab tais thaum kawg overthrown nyob rau hauv?
![Nyob rau hauv russia huab tais thaum kawg overthrown nyob rau hauv? Nyob rau hauv russia huab tais thaum kawg overthrown nyob rau hauv?](https://i.boatexistence.com/preview/questions/18717092-in-russia-monarchy-was-finally-overthrown-in-j.webp)
Lub Kaum Ib Hlis 7, 1917, Russia lub Bolshevik Revolution tau tshwm sim raws li cov tub rog coj los ntawm Vladimir Ilyich Lenin rhuav tshem tsoomfwv ib ntus ntawm Alexander Kerensky. Tsoom fwv ib ntus tau los tuav lub hwj chim tom qab Lub Ob Hlis Ntuj kiv puag ncig ua rau Lavxias teb sab huab tais raug rhuav tshem hauv Lub Peb Hlis 1917 Thaum twg Lavxias teb sab huab tais raug rhuav tshem?
Nyob rau hauv teb rau qhov tuaj txog ntawm acidic chyme nyob rau hauv lub duodenum?
![Nyob rau hauv teb rau qhov tuaj txog ntawm acidic chyme nyob rau hauv lub duodenum? Nyob rau hauv teb rau qhov tuaj txog ntawm acidic chyme nyob rau hauv lub duodenum?](https://i.boatexistence.com/preview/interesting/18748231-in-response-to-the-arrival-of-acidic-chyme-in-the-duodenum-the.webp)
Pab plab hnyuv . theem plab hnyuvtshwm sim hauv duodenum raws li cov lus teb rau cov chyme tuaj txog, thiab nws txo qis kev ua pa ntawm plab los ntawm cov tshuaj hormones thiab lub paj hlwb reflexes . Yuav ua li cas teb rau qhov tuaj txog ntawm acidic chyme hauv duodenum?