Yuav ua li cas yog lub digestive caj pas nyob rau hauv npliag deg? Nta ntawm cov qauv ntawm cov Molluscs

Peb tsab xov xwm no yog nplooj siab mus rau lub amazing cov tsiaj qus - mollusks. Vim lub peculiarities ntawm lawv cov qauv, lawv muaj mastered ob aqueous thiab av-huab cua ib puag ncig. Cov kab mob no muaj ib tug xov tooj ntawm cov lug uas yog tshwj xeeb rau lawv. Yuav ua li cas yog lub digestive caj pas nyob rau hauv npliag deg thiab mantle kab noj hniav, ntab, tsev fuabtais, funnel? Cia saib ua ke.

Nta ntawm cov qauv ntawm cov Molluscs

Lub npe ntawm no systematic kev sib sau yog txhais los ntawm Latin txhais tau tias "myagenkie". Tseeb shellfish (yees duab hauv qab no qhia tau hais tias ib tug ntawm cov neeg sawv cev ntawm hom) yog invertebrates. Lawv mos unsegmented lub cev yog feem ntau muaj kev tiv thaiv los ntawm ib tug dab ntxuav tes thiab muaj peb qhov chaw: lub taub hau, npog tas ib ce thiab ob txhais ceg. Txhua yam ntawm lawv yog ib tug xov tooj ntawm lub cev.

Nyob rau nws lub taub hau, ib tug khub ntawm tentacles uas yuav pab tau raws li tactile hloov khoom nruab nrog. Ko taw yog nyob rau hauv ventral sab ntawm lub cev, uas lub zog ntawm Molluscs. Lub cev cov tsiaj los ntawm tag nrho cov sab surrounded los ntawm ib tug quav los xij, uas yog hu ua tus mantle. Raws li ib tug ib tug kab noj hniav yog tsim ntawm cov qauv no thiab lub cev. Nyob rau hauv nws yog cov pa kabmob, ducts ntawm lub digestive, excretory thiab kev ua me nyuam lub nruab.

Tsim ntawm kev faib

Thov nco ntsoov tias cov shellfish, cov duab uas yog nyob rau hauv no tsab xov xwm no yog tshuam txawv lwm nta. Nyob ntawm seb cov nta, muaj peb cov chav kawm ntawv: Bryuho- thiab cephalopods, Bivalve. Cov neeg sawv cev ntawm thawj pab pawg neeg muaj mastered tsis tau tsuas yog lub cev ntawm cov dej, tab sis kuj yog ib tug ntau yam ntawm cov zajlus ntawm thaj av: cov av los yog hav zoov pem teb. Thaum lub gastropods yog zoo tsim tag nrho cov lub cev qhov chaw. Lub pob tw ntawm lub feem ntau ntawm lawv yog nyob rau hauv ib helically cov plhaub.

cephalopods lub cev muaj ob txhais ceg thiab npog tas ib ce thiab ceg hloov mus rau hauv tentacles. Ib tug yam ntxwv feature ntawm no hauv chav kawm ntawv yog tus muaj peev xwm mus dav hlau propulsion. Qhov no yog tau ua tsaug rau ib tug tshwj xeeb tubular tsim - ib tug funnel. Nws yog ib tug hloov ib feem ntawm tus ceg.

Bivalves nyob heev dua lwm yam nyob rau hauv cov dej lub cev. Lawv tsis muaj ib lub taub hau, thiab yog li ntawd deprived ntawm tus kabmob: tentacles, caj pas, tus nplaig, nrog cov ntab, kom muaj qaub ncaug. Lawv plhaub muaj ob tis, uas nyob rau hauv feem ntau hom muaj qhov yauv tsws si thiab ua si nraum zoov. Lawv sau yog hu ua lub tsev fuabtais.

Tus qauv ntawm lub digestive system

Tag nrho cov shellfish los ntawm lub digestive system ntawm lub hom. Nyob rau hauv Bryuho- cephalopods thiab nws pib lub qhov ncauj qhib. Nyob rau nws ciam teb nrog rau lub caj pas nyob horny lub puab tsaig. Nrog lawv pab, shellfish zaub mov scraped los ntawm ntau yam chaw. Lub qhov quav, uas xaus nrog lub system, opens mus rau hauv lub mantle kab noj hniav.

Lub ntsiab digestive caj pas nyob rau hauv npliag deg - ib tug siab. Nws nruab nrab yog cov outgrowth ntawm lub midgut. Feem ntau cov hom muaj ib tug muaj qaub caj pas. Zoo tag nrho cov cephalopods emit lom tshuaj uas ua kom xiam hoob khab prey thiab tua.

Yuav ua li cas yog lub digestive caj pas nyob rau hauv npliag deg

Qhov no yog ib feem ntawm lub digestive system yog kuj hu ua daim siab-txiav los yog gepatopankreaticheskaya hlau. Los ntawm nplooj siab ducts nws tseem yuav txuam nrog cov hnyuv. Digestive caj pas nyob rau hauv npliag deg muab kev koom tes nyob rau hauv lub plab zom mov thiab haum ntawm cov organic tshuaj. Nws yog ib qho chaw rau lub khw nqaijrog thiab carbohydrates, thiab kuj yog tawm phagocytosis.

Yuav ua li cas yog lub digestive caj pas nyob rau hauv npliag deg, cov uas nyob rau hauv lub chav kawm ntawv ntawm cephalopods? Rau cov mej zeej ntawm lub pab pawg neeg yog yus los ntawm ib tug tshwj xeeb cov qauv. Lawv ib leeg muaj lub siab, pancreas thiab muaj qaub ncaug.

Hom khoom noj khoom haus: Bivalves thiab cephalopods

Nta ntawm cov qauv ntawm cov digestive system ntawm shellfish txhua chav kawm ntawv thiab hom mov txawv. Piv txwv li, raug bivalve yog lim thas. Ua li no, lawv siv ib tug tshwj xeeb cov qauv, hu ua Siphons. Lawv yog cov ntawm ob hom. Nkag los ntawm ib tug inlet siphon dej nrog tshem tawm organic hais. Lub mantle kab noj hniav nws yog lim. Nrog kev pab los ntawm cilia zaub mov nkag mus rau hauv lub qhov ncauj qhib. Dhau los ntawm lub huam, nws nkag mus rau hauv lub raj mis cuab.

Feem ntau cov cephalopods - ua npua. Lawv tentacles nyob suckers uas pab catch thiab tuav prey. Lawv pub on crustaceans, ntses thiab lwm yam shellfish. Lub qhov ncauj cephalopods yog grater thiab horny puab tsaig. Lawv yog cov haib li ntawd, hais tias lawv yuav tau mus zuaj txawm lub zoo li ntawm crabs. Nyob rau hauv thiaj li yuav nyiam prey, cov mollusks muaj kev tshwj xeeb cov nqaij ntawm luminescence. Thiab nyob rau hauv thiaj li yuav tiv thaiv los ntawm cov yeeb ncuab lawv siv number case caj pas. Thaum raus rau hauv dej nws tsim ib daim card ib tug maub qhov chaw nyob rau hauv cover ntawm uas tus tsiaj hides.

Nta fais fab Molluscs: Gastropods chav kawm ntawv

Cov mollusks, nyob rau hauv lub loj heev muaj pes tsawg tus ntawm tus neeg mob, yog herbivorous. Thaum mus lawv scraped algae siv ib grater thiab horny lub puab tsaig. Yuav ua li cas yog lub digestive caj pas nyob rau hauv npliag deg nyob rau hauv cov hoob kawm no, uas yog ua npua? Ib txhia ntawm cov tsiaj nyob rau hauv nyob tus yeees ntawm cov qaub ncaug muaj xws li sulfuric acid. Nws muaj peev xwm sawv ntawm dissolving lub zoo li ntawm cov neeg raug los yog tshuaj lom cov yeeb ncuab. Tej predatory gastropods grater tsuas yog siv los tuav cov prey.

Thaum nyob rau hauv lub qhov ncauj, cov khoom noj seem lo rau lub khov qaub ncaug. Heev heev cilia, uas yog nyob rau hauv lub caj pas, xa no pob nyob rau hauv kuv lub plab. Nyob rau nws ntsis kawg yog ib tug tshwj xeeb cov qauv, uas yog hu ua prostyle. Nws yog tsim los ntawm sedimentary hais. Prostyle ua xws li ib tug lus, nkauj nraug cov khoom noj seem los ntawm cov qaub ncaug.

Kuj ceeb tias, muaj yog cov zaub mov solemy shellfish. Lawv digestive system yog kiag li txo. Zaum hais tias assimilation ntawm cov khoom noj uas lawv siv chemosynthetic kab mob.

Yog li ntawd, qwj yog invertebrates uas muaj ib tug mos mos unsegmented lub cev. Lawv muaj los ntawm lub digestive system ntawm lub hom, raws li zoo raws li tshwj xeeb qog: muaj qaub, pancreas thiab daim siab. Raws li cov qauv ntawm cov shellfish mov yuav grouped rau hauv peb sab pawg: lim thas, herbivorous thiab npua.