Qhov sib txawv tseem ceeb ntawm cephalopods thiab gastropods yog cephalopods yog cov tsiaj hauv hiav txwv nkaus xwb, thaum feem ntau ntawm gastropods yog cov av, thiab qee qhov yog los ntawm marine thiab dej tshiab.
Phylum Mollusca suav nrog ib pawg ntawm cov nqaij mos-bodied invertebrates nrog ob sab symmetry. Molluscs muaj lub plhaub. Lawv kuj muaj ib lub mantle, uas yog ib txheej nyias ntawm cov ntaub so ntswg npog lawv lub cev. Tsis tas li ntawd, lawv muaj cov leeg ko taw hauv qab ntawm lub cev. Peb pawg ntawm molluscs yog gastropods, cephalopods, thiab bivalves. Cephalopods yog cov tsiaj hauv hiav txwv. Gastropods feem ntau yog terrestrial. Qee cov gastropods yog cov dej: ntsev thiab cov tsiaj dej tshiab. Gastropods yog pawg loj tshaj plaws, suav nrog ntau dua 80% ntawm cov molluscs.
Cephalopods yog dab tsi?
Cephalopods yog ib pawg ntawm cov molluscs uas muaj cov tsiaj hauv hiav txwv xws li octopi, cuttlefish, thiab nautili, thiab lwm yam. Lawv yog cov marine molluscs nruj me ntsis. Cephalopods yog cov ntse tshaj plaws invertebrates. Lawv muaj lub paj hlwb uas tsim los nrog lub hlwb nyuaj. Ntxiv mus, lawv qhia kev txav ceev hauv dej. Lawv tuaj yeem ua luam dej sai. Tsis tas li ntawd, lawv muaj lub kaw lus kaw.
Daim duab 01: Cephalopod
Cephalopods muaj ntau lub tsev pheeb suab uas ncig lub taub hau. Lawv feem ntau yog cov tsiaj txhu uas pub ntses, crustaceans, worms, thiab lwm yam molluscs. Lawv lub koob yees duab zoo tsim hom lub qhov muag pab lawv ntes cov tsiaj. Qee cov cephalopods xws li octopus, squid, thiab cuttlefish hom muaj peev xwm hloov lawv cov xim.
Gastropods yog dab tsi?
Gastropods yog ib pawg ntawm cov molluscs uas suav nrog qwj, conchs, abalones, whelks, hiav txwv slugs, thiab vaj slugs. Nws yog tib pab pawg uas muaj cov molluscs terrestrial. Yog li ntawd, feem ntau ntawm gastropods yog terrestrial. Qee cov gastropods nyob hauv dej hiav txwv, thaum lwm hom nyob hauv dej tshiab. Lawv nyob hauv ntau qhov chaw nyob. Gastropods xws li qwj muaj lub plhaub coiled. Tab sis qee qhov gastropods zoo li slugs tsis muaj lub plhaub.
Daim duab 02: Gastropod
Gastropods muaj lub taub hau tsim tau zoo. Lawv kuj muaj cov leeg ko taw. Txawm hais tias molluscs tau piav raws li ob sab symmetrical, gastropods yog asymmetrical. Tsis zoo li cephalopods, gastropods muaj ib qho qhib circulatory system. Qee cov gastropods yog herbivores, hos qee tus yog carnivores. Terrestrial gastropods muaj lub ntsws rau kev ua pa, thaum hom dej muaj gills.
Dab tsi yog qhov zoo sib xws ntawm Cephalopods thiab Gastropods?
- Cephalopods thiab gastropods yog ob chav kawm uas yog phylum Mollusca ntawm Kingdom Animalia.
- Lawv muaj coiled plhaub.
- Ob pawg suav nrog cov tsiaj hauv dej.
- Lawv yog invertebrates.
- Ntxiv mus, lawv muaj cov leeg ko taw.
Qhov txawv ntawm Cephalopods thiab Gastropods yog dab tsi?
Cephalopods yog ib pab pawg uas suav nrog tsuas yog marine molluscs. Gastropods yog pawg loj tshaj plaws ntawm cov molluscs uas muaj cov tsiaj txhu hauv av, dej hiav txwv, thiab cov dej tshiab. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm cephalopods thiab gastropods. Cephalopods muaj xws li squid, octopuses, cuttlefish, thiab chambered nautiluses thaum gastropods muaj xws li qwj, conchs, abalones, whelks, hiav txwv slugs, thiab vaj slugs. Ntxiv mus, Cephalopods muaj lub kaw lus kaw, thaum gastropods muaj qhov qhib circulatory system. Yog li, qhov no yog lwm qhov sib txawv ntawm cephalopods thiab gastropods.
Cov hauv qab no infographic tabulates qhov sib txawv ntawm cephalopods thiab gastropods hauv kev nthuav dav rau ib sab ntawm kev sib piv.
Summary – Cephalopods vs Gastropods
Cephalopods thiab gastropods yog ob pawg ntawm molluscs. Cephalopods pom tsuas yog hauv dej hiav txwv. Feem ntau ntawm gastropods yog terrestrial, hos ob peb yog marine thiab dej tshiab. Cephalopods yog cov vertebrates txawj ntse tshaj plaws, thiab lawv txav ceev hauv dej. Gastropods tsis txawj ntse, thiab lawv yog cov tsiaj qeeb. Cephalopods muaj qhov kaw circulatory system thaum gastropods muaj qhib circulatory system. Yog li, qhov no qhia txog qhov sib txawv ntawm cephalopods thiab gastropods.
