: a sac or chamber secreted and lived in by a bryozoan zooid zooid A zooid or zoöid /ˈzoʊ. ɔɪd/ is ib tug tsiaj uas yog ib feem ntawm ib tug colonial tsiaj. Txoj kev ua neej no tau txais los ntawm cov tsiaj los ntawm cais tsis muaj kev cuam tshuam. Zooids yog multicellular; lawv cov qauv zoo ib yam li lwm cov tsiaj nyob ib leeg. https://en.wikipedia.org › wiki › Zooid
Zooid - Wikipedia
Zooecia txhais li cas?
- Zooecia prismatic lossis cylindrical, nrog lub davhlau ya nyob twg, feem ntau ncig lub qhov ncauj, tsis muaj kev tiv thaiv los ntawm ib qho khoom tshwj xeeb. Cov ovicells tau hloov kho zooecia, thiab muaj ntau lub embryos uas nyob rau hauv cov ntaub ntawv kom deb li deb soj ntsuam tshwm sim los ntawm fission ntawm ib tug thawj embryo tsim los ntawm lub qe.
Zoorium yog dab tsi?
: ib colonial bryozoans.
Moss yog tsiaj?
Moss tsiaj, tseem hu ua bryozoan, ib tus tswvcuab ntawm phylum Bryozoa (tseem hu ua Polyzoa lossis Ectoprocta), uas muaj txog 5,000 hom tsiaj. … Raws li nrog brachiopods thiab phoronids, bryozoans muaj lub nplhaib tshwj xeeb ntawm ciliated tentacles, hu ua lophophore, rau khaws cov khoom noj uas tau muab tshem tawm hauv dej.
Zoecium yog dab tsi?
Zooecium, uas npog lub zooid, muaj an organic cuticle muaj li ntawm cov protein thiab chitin lossis cuticle overlying calcium carbonate. Hauv ntau hom, zoecium yog hnyav thiab nruj. Ib co impregnation ntawm chitinous txheej nrogcalcium carbonate tej zaum yuav tshwm sim, txawm tias thaum tsis muaj calcareous txheej.
