Mollusks yog ib lub cev ntawm cov tsiaj txhu uas tsis muaj cev nqaij daim tawv uas txhais los ntawm lawv cov qauv ntawm lub cev - lub taub hau, lub ntsej muag loj, lub mantle thiab qee yam ntawm ko taw. Lub mantle tiv thaiv lub mollusk lub cev nyob rau hauv qhov chaw ntawm ib tug skeletal qauv, thiab "ko taw" tau coj mus rau ntau yam adaptions nyob rau hauv lub mollusca hom.
Yuav ua li cas tsiaj muaj ib tug mantle thiab ko taw?
Mollusks tso tawm ntau yam ntawm morphologies nyob rau hauv txhua chav kawm thiab subclass, tab sis qhia ob peb yam tseem ceeb, nrog rau cov leeg pob txha, ib qho visceral loj uas muaj cov kab mob hauv nruab nrog cev, thiab lub mantle. uas tej zaum yuav los yog tsis zais ib lub plhaub ntawm calcium carbonate (Daim duab 1).
Pob mollusks puas muaj mantle thiab ko taw?
Tag nrho cov mollusks muaj a visceral mass, ib mantle, thiab ko taw. Lub visceral loj muaj cov plab zom mov, excretory, thiab cov kab mob hauv lub cev. Lub mantle yog npog. … Cov ko taw yog cov leeg thiab yog siv rau kev txav chaw, txuas, thiab/los yog khoom noj khoom haus.
Pob bivalves muaj mantle?
Cov kab noj hniav mantle ua haujlwm ua lub tshuab ua pa hauv feem ntau cov mollusks. Hauv bivalves nws feem ntau yog ib feem ntawm cov qauv pub noj. Nyob rau hauv ib co mollusks lub mantle kab noj hniav yog ib tug brood chamber, thiab nyob rau hauv cephalopods thiab ib co bivalves xws li scallops, nws yog ib tug locomotory organ. Lub cev muaj zog heev.
Pob bivalves muaj ko taw?
Zoo li ntses, bivalve mollusks ua pa los ntawm lawv cov gills. Raws li lim feeders,bivalves sau zaub mov los ntawm lawv cov gills. Qee bivalves muaj taw tes, thim rov qab "ko taw" uas tawm ntawm lub plhaub thiab khawb rau hauv cov av ib puag ncig, ua kom cov tsiaj txav los yog burrow.
