Cov echinoderms muaj a radially teem, pentamerous lub cev qauv uas txawv heev ntawm ob sab lub cev qauv ntawm cov cuam tshuam deuterostome phyla, hemichordates thiab chordates. … purpurescens, morphogenesis ntawm tus neeg laus echinoderm tuaj yeem pom thaum lub sijhawm ntxov ntawm kev loj hlob.
Vim li cas echinoderms muaj radial symmetry?
Lub cev yog motile thiab ob sab hauv kev sib luag. Bilateral symmetry txhais tau hais tias lub cev muaj peev xwm txiav tau nyob rau hauv nruab nrab thiab muab faib ua ob tug sib npaug halves. Cov poj koob yawm txwv echinoderm tom qab tsim radial symmetry raws li nws tau xav tias yuav ua tau zoo dua rau cov hom.
Puas yog echinoderms radial lossis ob sab hauv symmetry?
Echinoderms yog marine invertebrates. Lawv suav nrog cov hnub qub hiav txwv, cov xuab zeb nyiaj, thiab cov hnub qub plaub. Echinoderms muaj ib tug spiny endoskeleton. Lawv muaj radial symmetry li cov neeg laus tab sis ob sab symmetry li larvae.
Dab tsi symmetry echinoderms muaj?
Echinoderms hloov zuj zus los ntawm cov tsiaj nrog bilateral symmetry. Txawm hais tias cov neeg laus echinoderms muaj pentaradial, los yog tsib-sided, symmetry, echinoderm larvae yog ciliated, dawb-ua luam dej kab mob uas koom ua ke nyob rau hauv ob sab symmetry uas ua rau lawv zoo li embryonic chordates.
Puas yog echinoderms radially symmetrical li cov neeg laus?
Larvae yog, los ntawm txhais, txawv heev ntawm cov neeg laus cov tsiaj, tab sis cov echinoderms muab cov piv txwv paub txog ob sab.symmetrical larvae uas ua rau nce mus rau radially symmetrical neeg laus. Tsis yog txhua tus echinoderms muaj larvae, tab sis feem ntau ntawm lawv ua.
