Nyob hauv vertebrates lub embryonic notochord nws thiaj li hloov los ntawm?

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Nyob hauv vertebrates lub embryonic notochord nws thiaj li hloov los ntawm?
Nyob hauv vertebrates lub embryonic notochord nws thiaj li hloov los ntawm?

Video: Nyob hauv vertebrates lub embryonic notochord nws thiaj li hloov los ntawm?

Video: Nyob hauv vertebrates lub embryonic notochord nws thiaj li hloov los ntawm?
Video: xanakee - tus twg nyob hauv koj siab 2024, Hlis ntuj nqeg
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Nyob rau hauv cov vertebrates feem ntau, lub embryonic notochord nws thiaj li hloov los ntawm bony vertebrae los yog cartilaginous ntaub so ntswg; ntawm cephalochordates, lub notochord tau khaws cia rau hauv neeg laus thiab tsis tau hloov los ntawm vertebrae.

Tus qauv twg hloov lub notochord hauv vertebrates?

Nyob rau hauv feem ntau vertebrates, lub notochord nws thiaj li hloov los ntawm ossified vertebrae, tab sis nws pheej mus thoob plaws lub neej ntawm invertebrate chordates (Stemple, 2005; Trapani, Bonaldo, & Corallo, 2017).

Dab tsi hloov lub notochord hauv feem ntau vertebrates quizlet?

Dab tsi yog tus notochord hloov los ntawm cov vertebrates siab dua? Nws tau hloov ntau heev los ntawm lub pob txha vertebral kem nrog cov khoom seem ua haujlwm li cartilaginous, invertebral discs.

txoj hmoo ntawm notochord yog dab tsi?

Nws yog kawg noj tag nrho los ntawm txha nraub qaum. Nyob rau hauv tus txha nraub qaum, nws ua ib feem tseem ceeb ntawm lub intervertebral disc. Hauv lwm lo lus, lub notochord yog kho dua tshiab los ntawm kab vertebral ib nrab lossis tag nrho. Nov yog lo lus teb tiag.

Yuav ua li cas teev cov vertebrates sib nrug ntawm lwm cov chordates?

Raws li chordates, vertebrates muaj tib yam nta: ib tug notochord, ib tug dorsal hollow paj qaum, pharyngeal slits, thiab ib tug tom qab anal tail. Vertebrates tau sib txawv ntxiv los ntawm chordates los ntawm lawv vertebral kem, uas tsim thaum lawv cov notochord loj hlob mus rau hauv kem ntawm pob txha vertebrae sib cais los ntawm discs.

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