Qhov txawv ntawm radiata thiab bilateria yog tias radiata yog cov kab mob radially symmetrical uas muaj ob txheej kab mob thaum bilateria yog ob sab symmetrical kab mob uas muaj peb txheej kab mob.
Radiata thiab bilateria yog ob hom kab mob uas txawv ntawm cov txheej txheem hauv paus ntawm cov kab mob. Yog li, radiata yog cov kab mob diploblastic. Lawv tsuas muaj ob txheej kab mob xwb. Ntawm qhov tod tes, bilateria yog cov kab mob triploblastic. Lawv muaj tag nrho peb txheej kab mob, suav nrog mesoderm. Ntxiv mus, radiata qhia radial symmetry thaum bilateria qhia ob sab symmetry. Ib yam li ntawd, radiata thiab bilateria sib txawv ntawm ib leeg.
Dab tsi yog Radiata?
Radiata yog ib pab pawg ntawm metazoan uas qhia radial symmetry. Nyob rau hauv radially symmetrical kab mob, lub cev qhov chaw yog teem raws lub ntsiab longitudinal axis ntawm lub cev. Coelenterates thiab echinoderms yog ob pawg loj ntawm radiata. Ntxiv mus, radiata yog diploblastic vim lawv muaj ob txheej kab mob: ectoderm thiab endoderm.
Daim duab 01: Radiata
Tsis tas li ntawd, radiata qhia feem ntau tsis muaj sia nyob. Lawv tsis xav txav lawv lub cev rau kev ntes cov zaub mov vim tias cov khoom noj khoom haus ntes cov kabmob qhia txog radial. Lawv lub cev muaj ob sab: dorsal sab thiab ventral sab. Tab sis lawv tsis muaj lub taub hau thiab tus Tsov tus tw. Tsis tas li ntawd, lawv tsis muaj sab xis thiab sab laug ntawm lub cev, tsis zoo li bilateria.
Dab tsi yog Bilateria?
Bilateria yog cov kab mob uas qhia txog kev sib luag ntawm ob sab. Lawv lub cev qhov chaw yog teem nyob rau hauv xws li ib tug txoj kev uas lub cev yuav muab faib ua ob tug sib npaug halves, uas yog daim iav dluab ntawm ib leeg. Kev hnov mob thiab lub paj hlwb muaj nyob rau sab anterior ntawm lub cev. Locomotory kabmob muaj nyob ua khub, sib npaug ntawm ob lub halves raws cov axis longitudinal.
Flatworms yog thawj pab pawg uas pom ob sab symmetry. Cov tsiaj siab dua xws li chordates thiab lwm yam kab mob xws li annelids, arthropods, thiab qee cov molluscs kuj qhia ob sab symmetry.
Daim duab 02: Bilateria
Ntxiv rau qhov saum toj no, lub bilateria yog triploblastic. Lawv muaj peb txheej kab mob, suav nrog mesoderm. Yog li ntawd, lawv muaj lub plab zom mov tag nrog lub qhov ncauj thiab qhov quav. Feem ntau ntawm cov bilateria muaj qhov tseeb hauv lub cev kab noj hniav hu ua coelom.
Dab tsi zoo sib xws ntawm Radiata thiab Bilateria?
- Radiata thiab bilateria yog ob pawg metazoan raws li qhov sib luag uas lawv qhia.
- Lawv muaj ectoderm thiab endoderm.
Qhov txawv ntawm Radiata thiab Bilateria yog dab tsi?
Radiata yog cov kab mob radially symmetrical diploblastic kab mob thaum lub sij hawm bilateria yog ob sab sib luag symmetrical triploblastic kab mob. Yog li, lub cev ntawm Radiata tuaj yeem muab faib ua ntau zaus los ntawm lub hauv paus axis, tsim ntau daim iav duab thaum lub cev ntawm bilateria tuaj yeem muab faib ua ob ntu uas yog daim iav duab los ntawm lub hauv paus axis. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm radiata thiab bilateria. Lwm qhov sib txawv ntawm radiata thiab bilateria yog qhov radiata tsis muaj coelom, thaum lub bilateria muaj ib coelom.
Cov duab hauv qab no qhia txog qhov sib txawv ntawm radiata thiab bilateria.
Summary – Radiata vs Bilateria
Radiata thiab bilateria yog ob pawg metazoan categorized raws li qhov sib luag ntawm lub cev. Radiata qhia radial symmetry thiab lawv lub cev tuaj yeem muab faib ua ntau zaus los ntawm lub hauv paus axis, tsim ntau daim iav duab. Nyob rau hauv sib piv, bilateria qhia ob sab symmetry thiab lawv lub cev yuav muab faib ib zaug rau hauv ob halves uas yog daim iav duab los ntawm lub hauv paus axis. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm radiata thiab bilateria. Ntxiv mus, radiata yog diploblastic tsiaj, uas tsuas muaj ob txheej kab mob thaum bilateria yog triploblastic thiab muaj tag nrho peb txheej kab mob.
