Muaj tsawg tus neeg paub, tab sis tus qwj tsis yog lub cev oblong. Lawv muaj tag nrho lub taub hau thiab ob txhais ceg. Tsis tas li ntawd, lub cev ntawm cov qwj muaj xws li cov visceral sac thiab mantle (fold). Lub mollusk txav ntawm nws ib leeg, nyob rau hauv qab ntawm txhais ceg. Qhov kev txav yog tshwm sim los ntawm kev cog lus ntawm cov leeg, uas tsim ib hom nthwv dej. Txhawm rau kom cov qwj txav tau yooj yim li sai tau, cov kua qaub ntau tau tso tawm los ntawm nws cov epithelium.
Nqe yog dab tsi?
Lub plhaub yog ib qho tseem ceeb ntawm txhua tus qwj. Ua tsaug rau cov pob txha sab nraud, tom kawg tuaj yeem tiv thaiv nws tus kheej los ntawm kev tawm tsam los ntawm cov yeeb ncuab ntuj thiab los ntawm kev cuam tshuam ntawm lwm yam ntuj tsim los ntawm sab nraud. Lub dab dej kuj pab khaws cov dej noo.
Cov pob txha sab nrauv zoo li lub khob hliav qab. Los ntawm txoj kev, nws yog precisely vim hais tias ntawm no zoo li lub cev ntawm lub cochlea yog teem asymmetrically. Cov txheej txheem saum toj kawg nkaus ntawm cov pob txha feem ntau yog du lossis muaj qhov loj me me.
Nqaij tsis muaj plhaub
Tau kawg, tsis yog txhua tus mollusks tuaj yeem khav tau lub cev pob txha sab nraud. Feem ntau hauv cov xwm txheej koj tuaj yeem pom cov qwj nrog lub plhaub txo qis, uas yog lub phaj calcareous nyob rau hauv lub mantle. Cov molluscs no hu ua slugs. Lawv qhov chaw nyiam tshaj plaws yog txhua lub vaj lossis zaub vaj.
Ntau txog slime
Raws li peb tau hais ua ntej lawm, cov hnoos qeev ntawm cov qwj tseem ceeb heev rau nws txoj kev txav. Nws muaj cov protein ntau (mucin) thiab dej dawb.
Snail mucus muaj cov khoom tshwj xeeb uas nrov heev hauv niaj hnub cosmetology. Peb tab tom tham txog kev tiv thaiv kev laus, tshuaj pleev thaiv hnub thiab moisturizing teebmeem.
Nqaij muaj hniav?
Muaj tseeb tiag, peb qee tus tsawg kawg ib zaug tau txaus siab rau lo lus nug no. Nws paub tias mollusks yog ob qho tib si herbivores thiab predators. Hauv qhov no, qwj yuav tsum muaj cov hniav, txwv tsis pub lawv yuav zom zaub mov li cas?
Yog lawm, lawv muaj. Saib cov duab ntawm cov hniav qwj hauv qab no.
Lawv nyob ntawm tus nplaig, uas cov mollusk siv los txiav thiab zom cov zaub mov. Cov kws tshawb fawb tseem tuaj yeem pom cov hniav qwj tau yooj yim hauv qab lub tshuab ntsuas.
Nco ntsoov tias cov hniav ntawm mollusks tsis yog qhov peb xav txog hauv cov lus ib txwm muaj. Txhua tus neeg sawv cev ntawm gastropods muaj lub cev tshwj xeeb hauv lub qhov ncauj - radula. Yog li nws yog tus analogue ntawm tus nplaig thiab cov hniav, uas peb tau tham txog ua ntej. Nws yog noteworthy tias snails lom muaj kab noj hniavLub radula kuj tseem ua lub luag haujlwm khaws cov tshuaj lom, uas yog zais los ntawm lub caj pas tshwj xeeb.
Yuav ua li cas txog qhov muaj nuj nqis? Daim nqi mus rau ntau txhiab, thiab feem ntau nws tag nrho nyob ntawm qhov loj ntawm mollusk nws tus kheej. Yog li, piv txwv li, rau lo lus nug ntawm yuav ua li cas muaj ntau yam hniav Achatina qwj muaj, cov lus teb yuav suav hais tias yog - 25,000. Qhov no yog txawm lub fact tias Achatina yog tiag tiag giants ntawm lawv cov txheeb ze. Cov molluscs me me feem ntau muaj tsawg kawg ntawm ib ncig ntawm 10,000 tus hniav.
Snail in the wild - nws nyob qhov twg?
Mollusks tsim nyog nyob hauv yuav luag txhua qhov kev nyab xeeb thiab txhua lub tebchaws. Tsuas yog kev zam yog Antarctica thiab cov suab puam kub. Qee cov mollusks tuaj yeem pom hauv Dej Hiav Txwv Pacific, hauv Mediterranean thiab txawm nyob hauv Dej Hiav Txwv Arctic.
Qhov chaw zoo tshaj plaws rau cov tsiaj no yog: Europe, Africa, America thiab Australia. Feem ntau lawv tuaj yeem pom nyob rau thaj tsam ntawm Asia thiab Russia.
Yuav kom lub cev ntawm mollusks tsis qhuav, lawv yuav tsum tau haus dej ntau. Yog vim li ntawd lawv thiaj nyob tau yooj yim nyob rau hauv qhov chaw uas muaj av noo siab.
Dab tsi suav nrog hauv kev noj haus
Kev noj qab haus huv ntawm qwj nyob ntawm qhov chaw nws nyob. Kev noj zaub mov tuaj yeem muaj ntau haiv neeg: cov nroj tsuag tshiab, lwm cov qwj me me, cov cab, cov neeg sawv cev ntawm kab thiab crustaceans, ntses thiab txawm tias carrion.
Av kwj ib txwm zoo siab noj nplooj, berries, zaub, nyom thiab ntoo tawv. Rau cov tub ntxhais hluas, noj zaub mov tshiab yog qhov tseem ceeb, tab sis cov laus yuav tsis kamcov nroj tsuag lwj.
Tshuaj rau cov uas xav pib yug me nyuam qwj hauv tsev
Nyob rau tshooj dhau los, peb tau tham txog yam koj tuaj yeem noj tau cov qwj. Txhawm rau kom nws zom tag nrho cov no, yuav tsum muaj calcium txaus hauv nws cov hniav. Nyob rau hauv cov ntaub ntawv ntawm deficiency, lub mollusk yuav pib sharpen nws lub plhaub.
Txhua yam no yuav xaus nrog kev puas tsuaj ntawm kev tiv thaiv thiab, vim li ntawd, kev tuag ntawm cov qwj. Koj tuaj yeem tiv thaiv calcium tsis txaus nrog kev pab los ntawm cov ntsiav tshuaj tshwj xeeb lossis cov qe crushed, uas yuav siv los ua zaub mov.
Yog tias qwj khaws cia rau hauv lub thoob dej yug ntses, lawv tuaj yeem muab cov zaub mov noj ntses, cov nroj tsuag tshwj xeeb, cov ntsiav tshuaj algae thiab cov zaub zoo. Nws yog txwv tsis pub muab tib neeg cov zaub mov rau molluscs. Nws tseem tsim nyog them nqi rau qhov tseeb tias tsis tau muaj ntawv xov xwm nyob ze. Yog tus qwj noj daim ntawv, tom qab noj mov zoo li no nws yuav tsis dim lawm.
Yuav kom lub thoob dej yug ntses kom tsis txhob poob tag nrho cov nroj tsuag, koj yuav tsum tswj koj tus tsiaj. Ib qho me me yuav ua txoj haujlwm zoo ntawm kev rhuav tshem tag nrho cov rot uas tau sau dhau sijhawm.
About lifespan
Txawm hais tias cov qwj muaj kev tiv thaiv kev ntxhov siab heev, lawv nyob tsuas yog 25 xyoo xwb. Nyob rau hauv qhov xwm txheej, shellfish muaj kev pheej hmoo raug tua, uas txhais tau hais tias lawv lub neej expectancy nyob rau hauv cov xwm txheej no yog heev txo.
Yog li, piv txwv li, ib tug qwj txiv hmab tuaj yeem nyob tau txog nees nkaum xyoo nyob rau hauv kev nyab xeeb. Dab tsithaum nws los nyob rau hauv qus, nws lub neej expectancy tsuas yog yim xyoo.
Los ntawm kev yug me nyuam qwj hauv kev poob cev qhev, koj tuaj yeem cia siab tias lawv yuav nyob tau lub neej ntev. Lawm, koj yuav tsum tsis txhob tsis quav ntsej cov cai yooj yim ntawm kev saib xyuas thiab pub mis.
