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Puas yog tag nrho cov bilateria triploblastic?

Cov txheej txheem:

Puas yog tag nrho cov bilateria triploblastic?
Puas yog tag nrho cov bilateria triploblastic?

Video: Puas yog tag nrho cov bilateria triploblastic?

Video: Puas yog tag nrho cov bilateria triploblastic?
Video: Lus Tim Khawv Khixatia | "Tag Nrho Phau Vajluskub Puas Yog Vajtswv Tshoov?" 2024, Tej zaum
Anonim

Tag nrho cov bilaterians , cov tsiaj uas muaj ob sab symmetrical embryos, yog triploblastic. Lwm cov tsiaj taxa, cov ctenophores, placozoans thiab cnidarians, yog diploblastic diploblastic Diploblastic kab mob yog cov kab mob uas tsim los ntawm xws li a blastula, thiab suav nrog cnidaria thiab ctenophora, yav tas los ua ke hauv phylum Coelenterata, tab sis. Tom qab kev nkag siab ntawm lawv qhov sib txawv ua rau lawv raug muab tso rau hauv nyias phyla. Cov endoderm tso cai rau lawv tsim cov ntaub so ntswg tiag. https://en.wikipedia.org › wiki › Diploblasty

Diploblasty - Wikipedia

txhais tau tias lawv cov embryos tsuas muaj ob txheej kab mob xwb Cov txheej txheem ectoderm yog ib qho ntawm peb txheej kab mob thawj zaug tsim nyob rau hauv thaum ntxov embryonic kev loj hlob. Nws yog txheej txheej sab nraud, thiab yog sab nraud rau mesoderm (cov txheej nruab nrab) thiab endoderm (txheej sab hauv tshaj). … Lo lus ectoderm los ntawm Greek ektos lub ntsiab lus "sab nraum", thiab derma lub ntsiab lus "skin". https://en.wikipedia.org › wiki › Ectoderm

Ectoderm - Wikipedia

. Daim txhuam cev tseem tsawg dua kev txhim kho tshwj xeeb, tsis muaj cov ntaub so ntswg thiab lub cev.

Pob Bilateria muaj Coelom?

Qee tus neeg ob leeg tsis muaj lub cev kab noj hniav (acoelomates, piv txwv li Platyhelminthes, Gastrotricha thiab Gnathostomulida), thaum lwm tus pom cov kab noj hniav hauv lub cev (los ntawm blastocoel, raws li pseudocoeloms) los yog cov kab noj hniav thib ob (uas tshwm de novo, piv txwv li cov coelom).

Puas yog tag nrho triploblastic ob tog sib luag?

Triploblastic tsiaj muaj peb txheej kab mob thiab muaj ntau hom kev npaj lub cev piv nrog cov kab mob diploblastic vim yog cov txheej txheem mesoderm ntxiv. Feem ntau ntawm lawv yog ob tog sib luag.

Txhua tus bilaterians muaj dab tsi hauv cov lus nug?

-Txhua tus neeg sib tw muaj ob tog sib luag. - Ntau tus bilaterians yog invertebrates tab sis qee qhov tsis yog. -Txhua tus bilaterians yog triploblastic (muaj peb txheej kab mob). -Feem ntau cov bilaterians muaj cov ntaub so ntswg tab sis ib txhia tsis.

Pob tib neeg muaj nyob rau hauv Bilateria?

Lub cev lub hom phiaj ntawm cov tsiaj feem ntau, suav nrog tib neeg, nthuav tawm daim iav symmetry, tseem hu ua ob sab sib luag. Lawv sib haum xeeb txog lub dav hlau khiav ntawm lub taub hau mus rau tus Tsov tus tw (los yog ntiv taw). Kev sib luag ntawm ob sab muaj ntau heev nyob rau hauv lub nceeg vaj tsiaj uas ntau tus kws tshawb fawb xav tias nws tsis tuaj yeem yog qhov sib txuam.

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