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Qhov twg zooid feem ntau yog motile?

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Qhov twg zooid feem ntau yog motile?
Qhov twg zooid feem ntau yog motile?

Video: Qhov twg zooid feem ntau yog motile?

Video: Qhov twg zooid feem ntau yog motile?
Video: Ib feem kaum. Nyob hauv malakis hais tseg 2024, Lub Xya hli ntuj
Anonim

Mediusae feem ntau yog kev xav thiab txhawj xeeb txog kev sib deev. Polyp thiab medusa yog qhov tseeb homologous qauv thiab los ntawm ib leeg tuaj yeem muab tau yooj yim. Gastrozooids lossis pub zooids yog cov polyps uas muaj lub qhov ncauj thiab ib puag ncig cov tentacles.

Zooids hauv cnidaria yog dab tsi?

Zooids yog tus neeg polyps tam sim no nyob rau hauv cov cheeb tsam ntawm hydroids Tus neeg zooids nyob rau hauv lub colony ua ntau yam hauj lwm sib txawv xws li kev ua me nyuam polyps hu ua gonozooids, pub cov tib neeg hu ua gastrozooids. Zooids yog multicellular thiab muaj cov qauv zoo ib yam li cov tib neeg.

polyps txav li cas?

Txawm li cas los xij, feem ntau ua tsis muaj zog thiab raug coj los ntawm cov dej ntws mus ntev. Polyps feem ntau yog sedentary. Pennatulacean colonies txav maj mam hla cov mos substrata los ntawm kev ua ntawm lawv cov peduncle inflatable(tus stalk uas txuas mus rau strata hauv qab kawg thiab mus rau lub cev polyp ntawm qhov kawg siab dua).

YPolymorphism hydrozoa yog dab tsi?

cov tib neeg sib txawv hauv cov pej xeem yog hu ua polymorphism. Nws yog ib qho ntawm. Cov yam ntxwv ntawm coelenterate, chav kawm Hydrozoa ntawm phylum Coelenterata suav nrog ntau hom colonial uas muaj ntau tshaj li ib hom ntawm cov tib neeg uas hu ua zooids.

Lub luag haujlwm ntawm Dactylozooids hauv Coelenterates yog dab tsi?

Gastrozooids yog lub luag haujlwm rau kev pub mis thiab kev yug menyuam. Ib yam li ntawd, gonzooids yog lub luag haujlwm rau kev sib deev. Dactylzooids yog lub luag haujlwm tsis pub pub mis thiab yog lav ris rau kev tiv thaiv.

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