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Pob Planarians puas muaj cephalization?

Cov txheej txheem:

Pob Planarians puas muaj cephalization?
Pob Planarians puas muaj cephalization?

Video: Pob Planarians puas muaj cephalization?

Video: Pob Planarians puas muaj cephalization?
Video: Puas Muaj Hnub Lawm Os Nkauj Hmoob Pov Yaj 13/5/2020 2024, Lub Xya hli ntuj
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Planarian yog tus tsiaj yooj yim tshaj plaws uas muaj lub cev npaj ntawm bilateral symmetry and cephalization Lub paj hlwb ntawm cov neeg dawb-nyob flatworms flatworms Cov helminths yog invertebrates characterized los ntawm elongated, tiaj tus los yog puag ncig lub cevHauv cov txheej txheem kho mob cov kab mob flatworms lossis platyhelminths (platy los ntawm Greek hauv paus ntsiab lus "paj") suav nrog flukes thiab tapeworms. … Helminths loj hlob los ntawm qe, larval (juvenile), thiab cov laus theem. https://www.ncbi.nlm.nih.gov › books › NBK8282

Helminths: Qauv, Kev faib tawm, Kev Loj Hlob, thiab Kev Txhim Kho - NCBI

yog ib lub qauv bilobed nrog lub cortex ntawm paj hlwb thiab cov tub ntxhais ntawm cov hlab ntsha fibers nrog rau qee qhov uas txiav txim siab los tsim cov commissures.

Pob cov kab mob flatworms muaj cephalization?

Ntau tus kab mob flatworms muaj ib cheeb tsam ntawm lub taub hau uas suav nrog cov paj hlwb thiab cov kab mob hauv lub cev, xws li lub qhov muag. Txoj kev loj hlob ntawm a cheeb tsam lub taub hau, hu ua cephalization, hloov zuj zus nyob rau tib lub sijhawm raws li ob sab sib luag hauv cov tsiaj.

chav kawm twg yog cov neeg npaj?

planarian, ( class Turbellaria), ib pawg ntawm cov neeg xa tawm dav dav, feem ntau yog cov neeg nyob dawb ntawm cov chav kawm Turbellaria (phylum Platyhelminthes). Planaria yog lub npe ntawm ib genus, tab sis lub npe planarian yog siv los xaiv ib tus tswv cuab ntawm tsev neeg Planariidae thiab cov tsev neeg muaj feem xyuam.

Puas Planaria segmented?

Planarians yog tiaj tus, mos-bodied worms nrog triploblastic lub cev npaj thiab tsis pom segmentation.

Puas yog kev npaj ob tog?

Planaria (Platyhelminthes) yog cov kab mob uas muaj sia nyob uas nyob hauv dej tshiab. … Ua ntej, cov kws kho mob muaj ob sab symmetrynrog ob lub paj hlwb txuas ntxiv qhov ntev ntawm lub cev, qhov loj "lub hlwb" (ganglion cell), thiab ob lub qhov muag.

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