Dab tsi yog hydroid colony?

Cov txheej txheem:

Dab tsi yog hydroid colony?
Dab tsi yog hydroid colony?

Video: Dab tsi yog hydroid colony?

Video: Dab tsi yog hydroid colony?
Video: Hmong new song 2016 - Yog dab tsi - Xub Hluav Taws (Official MV) 2024, Hlis ntuj nqeg
Anonim

Hydroids yog lub neej theem rau cov tsiaj feem ntau ntawm chav kawm Hydrozoa, cov tsiaj me me ntsig txog jellyfish. Qee cov hydroids xws li cov dej tsis qab Hydra yog ib leeg, nrog cov polyp txuas ncaj qha mus rau lub substrate. Thaum cov no tsim cov buds, lawv dhau los ua ke thiab loj hlob raws li tus neeg tshiab.

lo lus Hydroid txhais li cas?

(Nkag mus 1 ntawm 2): ntawm lossis cuam tshuam rau hydrozoan tshwj xeeb: zoo li ib txwm hydra. dej. npe.

Ib qho piv txwv ntawm Hydrozoa yog dab tsi?

Qee yam piv txwv ntawm hydrozoans yog freshwater jelly (Craspedacusta sowerbyi), dej tshiab polyps (Hydra), Obelia, Portuguese txiv neej o' tsov rog (Physalia physalis), chondrophores (Porpitidae), "air fern" (Sertularia argentea), thiab paj yeeb-hearted hydroids (Tubularia).

Yog hydroids Colonial?

Ntse: Hydroids yog cov tsiaj nyob hauv tebchaws Cov polyps me me (1 hli siab nrog lub taub me). Nyob rau hauv cov ntaub ntawv branching, cov polyps yog encased nyob rau hauv ib tug ' daim tawv nqaij' ua los ntawm chitin (tib yam khoom uas kab exoskeleton yog ua los ntawm). Hauv qee qhov, txhua tus polyp nyob hauv lub tswb zoo li 'lub thawv' nrog lub hau.

Hydroids ua dab tsi?

Ib tug hydroid yog ib hom vascular cell uas tshwm sim nyob rau hauv tej yam bryophytes. … Ua ke, hydroids ua haujlwm ua cov ntaub so ntswg, hu ua hydrome, thauj dej thiab cov zaub mov tau los ntawm cov avLawv nyob ib puag ncig los ntawm cov pob ntawm cov hlwb hu ua leptoids uas nqa cov suab thaj thiab lwm yam khoom noj. hauv kev daws teeb meem.

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