: ib qho ntawm cov chav kawm (Scyphozoa) ntawm cnidarians (xws li hiav txwv nettle) uas muaj lub loj, pom meej, kev sib deev medusa feem ntau tsis muaj ib lub velum thiab ib qho heev me me, feem ntau funnel-puab, asexually-reproducing polyp.
Koj paub Scyphozoa li cas?
Scyphozoans qhia ntau tus cwj pwm nrog lwm tus cnidarians: (1) lawv feem ntau muaj cov tentacles, (2) lawv symmetry yog radial, (3) lub cev phab ntsa muaj ib tug txheej ntawm epidermis thiab sab hauv gastrodermis, sib cais los ntawm ib txheej. ntawm jelly-zoo li mesoglea, (4) lub qhov ncauj tsuas yog qhib rau digestive system, (5) …
Qhov txawv ntawm Hydrozoa thiab Scyphozoa yog dab tsi?
Qhov txawv ntawm feem ntau hydrozoans thiab feem ntau scyphozoans yog uas hauv hydrozoans, theem polyp feem ntau predominates, nrog medusa me me los yog qee zaum tsis tuaj. … Hydrozoans kuj tsis muaj hlwb nyob rau hauv mesoglea, lub jelly txheej nyob nruab nrab ntawm cov txheej txheem cell, whereas scyphozoans muaj amoeboid hlwb nyob rau hauv mesoglea.
Tus yam ntxwv ntawm Scyphozoa yog dab tsi?
Scyphozoans nthuav tawm cov yam ntxwv tseem ceeb ntawm cnidarians. Lawv muaj radial symmetry thiab yog diploblastic, txhais tau tias lawv lub cev phab ntsa muaj cov txheej txheem epidermis (ectoderm) thiab sab hauv gastrodermis (endoderm), uas yog sib cais los ntawm mesoglea. Lawv muaj nematocysts, uas yog yam ntxwv ntawm phylum.
Lub ntsiab lus yog dab tsiHydrozoa?
: ib yam ntawm ib chav kawm (Hydrozoa) ntawm cnidarians (xws li hydra, hluav taws kub hnyiab, thiab Portuguese txiv neej-ntawm-ua tsov ua rog) uas suav nrog ib leeg thiab colonial polyps thiab medusae tab sis feem ntau muaj cov theem medusa txo qis los yog tsis tuaj thiab tsis muaj nematocysts hauv plab hnyuv - saib siphonophore.
