Video: Muaj pes tsawg tus vertebrae muaj cov nab kuab?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov Alligator muaj 8 lub ncauj tsev menyuam, 11 thoracic, 5lumbar, 2 sacral (fused) thiab 40 caudal qaum . Tsiv tau, ob lub taub hau, tav tau muab tso rau ntawm lub thoracic qaum . Ribs, yog tias muaj nyob ntawm lub lumbar qaum ua fuse. Snakesmay muaj raws li ntau ua 500 qaum.
Ib sab ntawm qhov no, cov nab kuab puas muaj pob txha?
Ib tus nab npawb yog ib hom tsiaj reptile uas tau ua rau kev txiav txim Crocodylia. Zoo li txhua tus tsiaj reptiles, cov nab kuab muaj pob txha, qhuav, tawv nqaij tawv, thiab txias-ntshav. Lawv tso qe los ntawm qhov lawv cov menyuam yaus daug. Cov nab kuab tau pom nyob hauv hav zoov nkaus xwb hauv Asmeskas thiab Tuam Tshoj, feem ntau nyob hauv thaj chaw swampy orrivers.
Ib yam nkaus, muaj pes tsawg tus vertebrae tus khej muaj? Qhov twg dermal ossifications ua muaj nyob, lawv muaj kev sib txuas yooj yim rau ib leeg. Muaj tav tav ntawm txhua lub cev qaum , lub sacral qaum , thawj 5 rau 10tail qaum , thiab, ntxiv rau thiab sib piv nrog lwm cov tsiaj reptiles niaj hnub no, txawm tias nyob ntawm ob lub ncauj tsev menyuam qaum.
Tsis tas li nug, pes tsawg tus pob txha muaj tus nab npawb?
Los ntawm kev sib piv, tus nab npawb pob txha taub hau muaj cav 53 pob txha.
Muaj pes tsawg tus vertebrae tib neeg muaj?
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Pom zoo:
Kev daws cov kuab tshuaj thiab kuab tshuaj yog dab tsi?
Ua Kev daws teeb meem Kev daws teeb meem yooj yim yog qhov pib ntawm ob yam tshuaj uas sib xyaw ua ke. Ib tug ntawm lawv yog hu ua lub solute thiab lwm yam yog cov kuab tshuaj. Kev daws yog cov khoom uas yuav tsum tau yaj (qab zib). Cov kuab tshuaj yog tus ua kom yaj (dej)
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