yam ntxwv ntawm Nematomorpha: Bilaterally symmetrical, thiab vermiform. Lub cev muaj ntau tshaj ob txheej ntawm tes, cov ntaub so ntswg thiab cov kabmob. Lub cev monomeric nrog pseudocoelomic kab noj hniav. Lub cev muaj lub plab uas ib txwm tsis ua haujlwm.
Dab tsi txawv ntawm nematode worms thiab Nematomorpha worms?
Qhov sib txawv tseem ceeb ntawm cov neeg laus Nematomorpha thiab cov neeg laus Nematoda yog lub plab degenerate hauv Nematomorpha. Lub luag haujlwm ntawm cov neeg laus tsis pub noj, tab sis kev yug me nyuam thiab tawg, thiab lawv muaj lub cev tsis muaj zog, raws li lub npe, cov kab plaub hau, qhia.
Nematomorpha ua dab tsi?
Nematomorpha (Horsehair Worms)
Cov larvae no tau nruab nrog hooks thiab stylets thiab muaj peev xwm kis tau tus tswv hauv dej. Feem ntau, cov tswv tsev no yog cov tswv tsev uas hloov cov encysted nematomorph larvae mus rau cov tswv tsev zaum kawg.
YPuas Nematomorpha yog Pseudocoelomate?
Lub siab hydrostatic ntawm lub pseudocoelom muab lub cev txhawb nqa uas ua raws li lub cev pob txha. Nematodes lossis roundworms (saib Nematoda), rotifers (saib Rotifera), acanthocephalans (spiny-headed worms), kinorhynchs (saib Kinorhyncha) thiab nematomorphs lossis horsehair worms (saib Nematomorpha) yog pseudocoelomates
piv txwv ntawm Pseudocoelomate yog dab tsi?
Ib qho piv txwv ntawm Pseudocoelomate yog tus kab mob roundworm. Pseudocoelomateanimals yogkuj hu ua Blastocoelomate. Acoelomate tsiaj, zoo li flatworms, tsis muaj lub cev kab noj hniav txhua. Semi-solid mesodermal cov ntaub so ntswg ntawm lub plab thiab lub cev phab ntsa tuav lawv cov plab hnyuv siab raum.
