Cov txheej txheem:
- Thaum twg thiab qhov twg Rhynia nrhiav tau?
- Puas Rhynia yog tsob nroj pob txha?
- Lub npe tshiab ntawm Rhynia loj yog dab tsi?
- Leej twg tau piav qhia txog qhov muaj Gametophyte hauv Rhynia?
Video: Nrhiav pom cov pob txha cog rhynia nyob qhov twg?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Kev piav qhia. Rhynia gwynne-vaughanii thawj zaug tau piav qhia tias yog hom tshiab los ntawm Robert Kidston thiab William H. Lang xyoo 1917. Cov hom tsuas yog paub los ntawm the Rhynie chert hauv Aberdeenshire, Scotland, qhov chaw nws loj hlob hauv thaj tsam ntawm lub caij nplooj ntoos hlav silica nplua nuj.
Thaum twg thiab qhov twg Rhynia nrhiav tau?
Bihar. Cov lus qhia: Rhynia thawj zaug pom tias yog hom tshiab los ntawm Robert Kidston thiab William H. Lang hauv xyoo 1917. Qhov chaw uas nws tsim yog nyob rau thaj tsam ntawm lub caij nplooj ntoos hlav silica nplua nuj.
Puas Rhynia yog tsob nroj pob txha?
Rhynia is a genus of Early Devonian fossil land plants. Tsuas yog ib hom neeg paub, R. gwynne-vaughanii. Cov pob txha yog cov tiam sporophyte ntawm cov nroj tsuag vascular.
Lub npe tshiab ntawm Rhynia loj yog dab tsi?
Raws li kev kuaj mob ntawm Rhynia yog tias nws yog cov nroj tsuag vascular, nws tsim ib lub genus tshiab, Aglaophyton, rau hom no. (Lwm hom Rhynia, R. gwynne-vaughanii, tsis cuam tshuam.)
Leej twg tau piav qhia txog qhov muaj Gametophyte hauv Rhynia?
Ib qho ntawm thawj Rhynie chert nroj tsuag tau piav qhia thiab tej zaum qhov ntau tshaj yog daim ntawv Rhynia. Cov nroj tsuag yog thawj zaug piav qhia thiab cais los ntawm Kidston thiab Lang hauv xyoo 1917, 1920a thiab muab lub npe hom Rhynia gwynne-vaughanii.
Pom zoo:
Cov pob txha pob txha txawv li cas pob txha pob txha?
pob txha pob txha yog tuab thiab tsim los ntawm osteons, hos pob txha pob txha tsawg thiab ua los ntawm trabeculae . Dab tsi yog qhov sib txawv ntawm cov pob txha pob txha thiab pob txha? Cov pob txha pob txha yog tsim los ntawm osteons thiab tsim cov txheej txheem sab nraud ntawm txhua pob txha.
Nyob hauv pob txha pob txha muaj dab tsi tshwm sim rau pob txha?
Ib pob txha pob txha tshwm sim thaum cov pob txha khoov thiab tawg, es tsis txhob tawg tag nrho rau hauv nyias daim nyias nyias Cov pob txha tawg zoo ib yam li qhov tshwm sim thaum koj sim tawg me me, "ntsuab " ceg ntawm tsob ntoo.
Vim li cas cov pob txha pob txha pob txha muaj ntau dua?
Cov menyuam yaus yuav muaj pob txha pob txha pob txha vim lawv cov pob txha mos thiab nkig tsawg dua tus neeg laus. Kev kho mob suav nrog kev tshem cov pob txha, lossis qee qhov kev phais . Vim li cas cov pob txha pob txha pob txha feem ntau tshwm sim hauv cov menyuam yaus?
Cov pob txha pob txha pob txha muaj li cas ntawm pob txha mos elastic?
Tsis zoo li cov pob txha mos thiab cov thyroid caj pas, uas muaj cov pob txha mos hyaline hyaline pob txha mos Abstract. Hyaline pob txha mos muaj nyob rau hauv synovial pob qij txha thiab pab txoj kev txav ntawm cov pob qij txha Nws yog tsim los ntawm chondrocytes thiab extracellular matrix.
Cov pob txha pob txha pob txha twg muaj qhov protuberance?
Cov pob txha occipital tsim cov duab tom qab ntawm lub pob txha taub hau thiab tom qab hauv pem teb ntawm cov kab noj hniav cranial. Ib qho tseem ceeb, sab nraud occipital protuberance, los yog inion, yog pom nyob rau sab nraud ntawm lub posterior midline (Daim duab 8-2).
