theem Taxonomic: phylum Echinodermata; Qib ntawm kev tsim kho: cov khoom nruab nrog cev tau los ntawm peb cov ntaub so ntswg; symmetry: radial, qee zaum ua ke nrog ob sab; hom plab: qhov muag tsis pom lub hnab nrog qhov txo qis heev, lossis ua tiav nrog qhov quav; hom kab noj ntawm lub cev uas tsis yog plab: coelom coelom Lub coelom (los yog celom) yog lub cev kab noj hniav tseem ceeb hauv cov tsiaj feem ntau thiab nyob hauv lub cev kom nyob ib puag ncig thiab muaj lub plab zom mov thiab lwm yam kabmob.. Hauv qee cov tsiaj, nws yog kab nrog mesothelium. Nyob rau hauv lwm yam tsiaj, xws li molluscs, nws tseem undifferentiated. https://en.wikipedia.org › wiki › Coelom
Coelom - Wikipedia
; segmentation: none; circulatory system: feem ntau…
Yog echinoderms segmented?
Cov neeg laus echinoderms tsis muaj taub hau, hlwb, thiab segmentation; Lawv feem ntau yog radially symmetrical. Lub cev feem ntau muaj tsib symmetrically radiating qhov chaw, lossis caj npab, xav txog lub koom haum sab hauv ntawm tus tsiaj.
Puas muaj pes tsawg lub cev echinoderms muaj?
Yam ntxwv ntawm Echinoderms
Echinoderms yog yam ntxwv ntawm radial symmetry, ob peb caj npab (5 los yog ntau tshaj, feem ntau yog pab pawg 2 sab laug - 1 nruab nrab - 2 sab xis) tawm ntawm lub cev hauv nruab nrab (=pentamerous). Lub cev yeej muaj tsib qhov sib npaug, txhua qhov muaj cov txheej txheem sib npaug ntawm ntau yam kabmob sab hauv.
Puas segmentation muaj nyob rau hauv hnub qub?
Starfish tso cai rau cov neeg siv los siv watershed segmentation rau hauv lawv cov kav dej hauv ob txoj hauv kev. Thawj qhov yog siv WatershedSegment los qhia meej meej txog cov kav dej segmentation.
Puas yog hiav txwv dib segmented?
Hiav txwv dib pos thiab lub cev yog segmented.
