Cov txheej txheem:
- Dinosaurs twg muaj pob txha hollow?
- Dab tsi yog qhov txawv ntawm sauropods thiab theropods?
- Puas yog avian dinosaurs puas muaj cov pob txha hollow?
- Puas T Rex noj sauropods?
Video: Puas sauropods muaj cov pob txha hollow?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Nrog rau lwm cov saurischian dinosaurs (xws li theropods, suav nrog cov noog), sauropods muaj cov hnab ntim huab cua, ua pov thawj los ntawm indentations thiab hollow kab noj hniav nyob rau hauv feem ntau ntawm lawv vertebrae uas tau invaded los ntawm lawv. Pneumatic, hollow pob txha yog cov yam ntxwv ntawm txhua tus sauropods.
Dinosaurs twg muaj pob txha hollow?
Tab sis cov kev tshawb fawb tau pom tias Allosaurus, ib qho tseem ceeb tshaj plaws theropod, kuj muaj cov pob txha hollow. Allosaurus yog ib tug tsiaj loj uas muaj caj npab me me, yog li nws tsis ya mus qhov twg-zoo li ntau lwm yam noog, cov pob txha hollow tshwm thaum ntxov ntawm tsob ntoo dinosaur.
Dab tsi yog qhov txawv ntawm sauropods thiab theropods?
Ob pawg sib txawv yog ib txwm muaj nyob rau hauv saurischians- tus Sauropodomorpha (herbivorous sauropods thiab prosauropods) thiab Theropoda (carnivorous dinosaurs). Cov pab pawg no tau muab tso ua ke los ntawm kev sib koom ua ke ntawm cov yam ntxwv uas lawv qhia tshwj xeeb.
Puas yog avian dinosaurs puas muaj cov pob txha hollow?
Therapod dinosaurs (feem ntau ntawm cov nqaij bipedal noj dinosaurs, thiab noog) feem ntau muaj cov pob txha hollow. Koj tuaj yeem nyeem qee qhov thiab pom ib daim duab ntawm no. Sauropod dinosaurs kuj muaj qee qhov hollows hauv lawv cov pob txha, tshwj xeeb hauv cov vertebrae. Ornithischian dinosaurs, ntawm qhov tod tes, zoo li tsis muaj cov pob txha hollow.
Puas T Rex noj sauropods?
Tyrannosaurus yuav luag yeej preyed ntawm titanic sauropods … Txawm hais tias sauropods yog cov tseem ceeb herbivores nyob rau hauv North America thaum lub sij hawm lig Jurassic, thiab txawm tias ntau yam kev mob tshwm sim los ntawm Cretaceous thaum ntxov, tag nrho. pab pawg tau ploj mus los ntawm sab av loj txog 100 lab xyoo dhau los.
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.
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.
Puas sharks muaj pob txha pob txha pob txha?
Niaj hnub sharks muaj skeletons ntawm cov ntaub so ntswg peculiar hu ua prismatic calcified pob txha: pob txha mos uas yog mineralised, tsis li cov nplooj ntawv, tab sis raws li ib tug mosaic ntawm me me ntxhia prisms. … Qhov no yuav pab piav qhia txog kev sib raug zoo ntawm prismatic calcified pob txha thiab pob txha .
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).
