Ib echinoderm yog ib tus tswv cuab ntawm phylum Echinodermata ntawm cov tsiaj hauv hiav txwv. Cov neeg laus muaj peev xwm paub tau los ntawm lawv cov radial symmetry, thiab suav nrog cov ntses hnub qub, hiav txwv urchins, xuab zeb nyiaj, thiab hiav txwv cucumbers, nrog rau cov hiav txwv lilies los yog "pob zeb lilies".
Echinodermata txhais li cas?
Lub phylum Echinodermata, uas muaj txog 6000 hom, tau txais nws lub npe los ntawm Greek, txhais tau tias " tawv nqaij tawv " Ntau tus echinoderms tiag tiag muaj "spiny" tawv nqaij, tab sis lwm tus. tsis txhob. … Tag nrho cov echinoderms muaj ib yam zoo sib xws: radial symmetry.
Echinodermata txhais li cas hauv Latin?
1834, los ntawm Niaj hnub Latin Echinodermata, lub npe ntawm cov phylum uas suav nrog cov ntses hnub qub thiab hiav txwv urchins, los ntawm Latinized daim ntawv ntawm Greek ekhinos "sea urchin," Ameslikas "porcupine, hedgehog" (saib echidna) + derma (genitive dermatos) "daim tawv nqaij," los ntawm PIE hauv pausder- "siv, flay, tev," nrog cov khoom siv xa mus rau daim tawv nqaij thiab …
Kev txhais lus ntawm echinodermata yog dab tsi?
Echinodermata. Ib tug phylum ntawm feem ntau paub marine invertebrates. Nws cov chav kawm Stelleroidea muaj ob pawg, Asteroidea (tus STARFISH lossis cov hnub qub hiav txwv) thiab Ophiuroidea (cov hnub qub nkig, tseem hu ua pob hnub qub thiab cov hnub qub nab).
Echinodermata tau txais nws lub npe li cas?
Daim phiaj ntawm cov pob txha sab hauv tuaj yeem sib koom ua ke (xws li cov hnub qub hauv hiav txwv) los yog muab sutured ua ke los ua ib qho kev sim nruj (hiav txwv urchins). Kev kwv yees los ntawm cov pob txha, qee zaum zoo li cov pob txha, uas yog ib txwm ntawm echinoderms, muab lub cev nws lub npe ( los ntawm Greek echinos, "spiny," thiab derma, " tawv nqaij").
