Qhov sib txawv tseem ceeb ntawm cov ntses hnub qub thiab lub hnub qub nkig yog los ntawm lawv txoj kev txav mus los. Lub hnub qub txav los ntawm lub raj taw thaum lub hnub qub nkig txav los ntawm flapping lawv ob txhais tes hauv daim ntawv ntawm kev taug kev.
Starfish thiab brittle hnub qub yog rau Phylum Echinodermata uas muaj cov kab mob tshwj xeeb hauv hiav txwv. Lawv nyob rau ob chav sib txawv xws li Asteroidia thiab Ophiuridea, feem. Lawv yog cov muaj yeeb yuj heev. Ob yam kab mob no muaj peev xwm nyob hauv cov dej ntiav. Tsis tas li ntawd xwb, ob qho tib si yog cov tsiaj txhu los yog cov tsiaj txhu.
Starfish yog dab tsi?
Starfish lossis hiav txwv hnub qub yog nyob rau hauv chav kawm Asteroidea ntawm Phylum Echinodermata ntawm Kingdom Animalia. Qhov tseeb, lawv yog cov kab mob muaj yeeb yuj heev. Lawv tsuas yog marine thiab tam sim no feem ntau nyob rau hauv lub hiav txwv ntiav. Tsis tas li ntawd, lawv qhia penta-radial symmetry thiab muaj tsib caj npab uas tawm ntawm lub hauv paus disk. Tus naj npawb ntawm caj npab ib lub hnub qub yuav txawv.
Daim duab 01: Starfish
Starfish muaj lub plab zom mov tiav nrog lub qhov ncauj thiab qhov quav. Lawv muaj ob lub plab: lub plab plawv thiab lub plab pyloric. Lawv tsuas yog nyob ntawm predation rau lawv cov khoom noj khoom haus. Ntxiv mus, lawv ua ib feem sab nraud digestion ua ntej noj cov zaub mov rau hauv lub cev. Lub plab plab ua rau sab nraud digestion thaum lub plab pyloric ua rau lub plab zom mov. Starfish txav nrog kev pab ntawm lub raj taw. Tube taw muaj ampullae thiab parapodia thiab cov qauv no kuj pab cov ntses hnub qub nyob rau hauv locomotion. Tsis tas li ntawd, lawv muaj kev tsim kho dej vascular system. Starfish kuj muaj qhov muag yooj yim thiab lawv txhais caj npab muaj qhov tshwj xeeb lub teeb-sensitive receptors.
Brittle Star yog dab tsi?
Lub hnub qub Brittle belongs rau chav kawm Ophiuroidea ntawm phylum Echinodermata. Lawv kuj yog cov kab mob muaj yeeb yuj heev thiab tshwj xeeb tshaj yog marine. Lawv muaj peev xwm ciaj sia nyob rau hauv ob qho tib si ntiav thiab tob hiav txwv. Zoo ib yam li cov ntses hnub qub, lub hnub qub brittle kuj qhia tau tias penta-radial symmetry. Lawv tau sib cais ntev caj npab nyob rau hauv central disk cheeb tsam. Cov caj npab no ntev thiab nkig; Raws li lawv lub npe qhia, lawv tawg yooj yim heev thaum raug mob tab sis kuj rov tsim dua sai. Lub digestive system ntawm brittle hnub qub yog tsis tiav. Txawm hais tias lawv muaj lub qhov ncauj, txoj hlab pas thiab lub plab, lawv tsis muaj qhov quav. Yog li, tshem tawm cov pov tseg kuj tshwm sim ntawm lub qhov ncauj. Lawv yog cov scavengers los yog predators.
Daim duab 02: Lub Hnub Qub
Kev txav ntawm lub hnub qub nkig tsis tau yooj yim los ntawm kev muaj lub raj taw. Lawv tsis muaj tube taw, ampullae lossis parapodia. Hloov chaw, lawv txav los ntawm flapping lawv cov caj npab ntev. Qhov no zoo ib yam li kev taug kev.
Dab tsi yog qhov zoo sib xws ntawm Starfish thiab Brittle Star?
- Ob lub hnub qub thiab lub hnub qub nkig yog rau Phylum Echinodermata ntawm Kingdom Animalia.
- Thiab, lawv qhia penta-radial symmetry.
- Tsis tas li, ob leeg tsuas yog nyob hauv ib puag ncig marine.
- Ob leeg muaj peev xwm nyob hauv qhov chaw nyob hauv hiav txwv ntiav.
- Tsis tas li ntawd, lawv yog cov neeg tua tsiaj.
- Dhau li ntawd, ob leeg yog cov kab mob muaj yeeb yuj.
Dab tsi ntawm Starfish thiab Brittle Star?
Starfish thiab Brittle lub hnub qub tshwm sim zoo ib yam hauv lawv cov tsos sab nrauv, ob qho tib si muaj yeeb yuj heev. Txawm li cas los xij, lawv suav nrog ob chav sib txawv ntawm Echinodermata: chav kawm Asteroidea thiab Ophiuridea. Qhov sib txawv tseem ceeb ntawm cov ntses hnub qub thiab lub hnub qub brittle yog qhov uas lawv txav mus. Lub hnub qub siv lub raj taw kom txav mus thaum lub hnub qub brittle siv nws txhais caj npab ntev txav. Ntxiv mus, cov ntses hnub qub muaj cov yam ntxwv tshwj xeeb xws li muaj ampullae thiab parapodia thaum lub hnub qub brittle tsis muaj cov. Li no, qhov no kuj yog qhov sib txawv ntawm cov ntses hnub qub thiab lub hnub qub brittle. Tsis tas li ntawd, lub plab zom mov kuj yog qhov sib txawv loj ntawm cov ntses hnub qub thiab lub hnub qub brittle. Qhov ntawd yog; lub hnub qub muaj lub plab zom mov tiav thaum lub hnub qub nkig tsis muaj lub plab zom mov tiav.
Cov hauv qab no nthuav tawm cov ntaub ntawv ntxiv txog qhov sib txawv ntawm cov ntses hnub qub thiab lub hnub qub ci ntsa iab.
Summary – Starfish vs Brittle Star
hnub qub ntses thiab lub hnub qub nkig tsuas yog marine echinoderms xwb. Qhov sib txawv tseem ceeb ntawm cov ntses hnub qub thiab lub hnub qub brittle yog hom kev txav; starfish siv raj taw rau lawv lub zog thaum lub hnub qub brittle txav siv lawv txhais caj npab ntev. Tsis tas li ntawd, cov ntses hnub qub muaj qhov ua tiav digestive nrog ob lub qhov ncauj thiab qhov quav. Hauv kev sib piv, lub hnub qub brittle tsuas muaj lub qhov ncauj thiab lub plab; Yog li, lawv cov digestive system tsis tiav. Tsis tas li ntawd, ntses hnub qub muaj caj npab luv thaum lub hnub qub brittle muaj caj npab ntev. Tsis tas li ntawd, ob lub hnub qub thiab lub hnub qub brittle yog cov yeeb yuj marine kab mob uas feem ntau nyob ntawm predation rau lawv cov as-ham. Yog li, qhov no qhia txog qhov sib txawv ntawm cov ntses hnub qub thiab lub hnub qub ci ntsa iab.
