Cov txheej txheem:
- Puas yog txhua tus vertebrates muaj pob txha thiab txha caj qaum?
- Tus tsiaj twg muaj pob txha?
- Npuas nab muaj qaum?
- Tsiaj twg tsis muaj caj dab?
![Puas muaj vertebrate muaj pob txha? Puas muaj vertebrate muaj pob txha?](https://i.boatexistence.com/preview/questions/18774131-does-a-vertebrate-have-a-backbone-j.webp)
Video: Puas muaj vertebrate muaj pob txha?
![Video: Puas muaj vertebrate muaj pob txha? Video: Puas muaj vertebrate muaj pob txha?](https://i.ytimg.com/vi/ydT0WbCY9bg/hqdefault.jpg)
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Muab tsiaj lub nceeg vaj ua piv txwv, peb pom tau tias nws tau muab faib ua ob pawg meej: Invertebrates - tsiaj tsis muaj pob txha. Vertebrates - tsiaj nrog lub nraub qaum… Ntses, tsiaj reptiles, noog, amphibians thiab tsiaj nyeg yog txawv pawg ntawm vertebrates - lawv txhua tus muaj cov pob txha sab hauv thiab nraub qaum.
Puas yog txhua tus vertebrates muaj pob txha thiab txha caj qaum?
Txhua tus vertebrates yog tsim raws li lub hauv paus chordate lub cev txoj kev npaj: ib tug txhav qws khiav los ntawm qhov ntev ntawm tus tsiaj (vertebral kem thiab / los yog notochord), nrog ib tug hollow raj ntawm paj hlwb ( tus txha nraub qaum qaum) saum nws thiab lub plab zom mov hauv qab no.
Tus tsiaj twg muaj pob txha?
Vertebrates yog tsiaj muaj pob txha (vertebrae). 5 chav kawm ntawm vertebrates yog: Ntses, Amphibians, Reptiles, Mammals, thiab noog.
Npuas nab muaj qaum?
Nab xav tau pob txha ntau kom lawv muaj zog thiab yoog raws. Lawv muaj pob txha taub hau tshwj xeeb (ntxiv rau qhov no tom qab!) thiab lawv muaj tus txha nraub qaum ntev heev, ua los ntawm ntau pua lub pob txha (cov pob txha uas ua rau peb lub nraub qaum). Lawv kuj muaj ntau pua tus tav, yuav luag tag nrho lawv lub cev, los tiv thaiv lawv lub cev.
Tsiaj twg tsis muaj caj dab?
Tsiaj txhu uas tsis muaj pob txha yog hu ua kab rov tav Lawv muaj los ntawm cov tsiaj paub zoo xws li jellyfish, corals, slugs, qwj, mussels, octopuses, crabs, cws, kab laug sab, butterflies thiab beetles. rau cov tsiaj uas tsis tshua paub zoo xws li flatworms, tapeworms, siphunculids, sea-mats thiab zuam.
Pom zoo:
Cov pob txha pob txha txawv li cas pob txha pob txha?
![Cov pob txha pob txha txawv li cas pob txha pob txha? Cov pob txha pob txha txawv li cas pob txha pob txha?](https://i.boatexistence.com/preview/questions/18670695-how-is-spongy-bone-different-from-compact-bone-j.webp)
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?
![Nyob hauv pob txha pob txha muaj dab tsi tshwm sim rau pob txha? Nyob hauv pob txha pob txha muaj dab tsi tshwm sim rau pob txha?](https://i.boatexistence.com/preview/questions/18676239-in-a-greenstick-fracture-what-has-occurred-to-the-bone-j.webp)
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?
![Vim li cas cov pob txha pob txha pob txha muaj ntau dua? Vim li cas cov pob txha pob txha pob txha muaj ntau dua?](https://i.boatexistence.com/preview/topical-issues/18676242-why-are-greenstick-fractures-more-common.webp)
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?
![Cov pob txha pob txha pob txha muaj li cas ntawm pob txha mos elastic? Cov pob txha pob txha pob txha muaj li cas ntawm pob txha mos elastic?](https://i.boatexistence.com/preview/questions/18702606-what-laryngeal-cartilage-is-composed-of-elastic-cartilage-j.webp)
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?
![Puas sharks muaj pob txha pob txha pob txha? Puas sharks muaj pob txha pob txha pob txha?](https://i.boatexistence.com/preview/questions/18748173-do-sharks-have-a-mineralized-skeleton-j.webp)
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 .