Jellyfish yog cov tsiaj uas muaj nyob hauv Cnidaria phylum thiab muaj nyob hauv yuav luag txhua qhov chaw hauv hiav txwv. Zoo li lwm yam tsiaj nyob, lawv yuav tsum noj kom tau txhua yam khoom noj uas tsim nyog kom muaj sia nyob. Lawv cov zaub mov txawv heev, tab sis, feem ntau, nws tuaj yeem hais tau tias jellyfish yog carnivorousLawv lub cev tau yoog, dhau ntawm lawv cov tentacles, mus ntes cov tsiaj, noj nws. thiab zom nws maj mam. Qee hom txawm muaj peev xwm ntes tau ntses loj, thiab qhov no tshwm sim ua tsaug rau cov cnidocytes, stinging hlwb nyob rau hauv lub tentacles thiab los ntawm lawv muaj peev xwm tiv thaiv lawv tus kheej tawm tsam predators los yog ntes lawv cov tsiaj, nyob rau hauv ntau rooj plaub lawv muaj peev xwm txawm tuag tes tuag taw.
Koj puas xav paub jellyfish noj dab tsi? Txuas ntxiv nyeem tsab xov xwm no ntawm peb lub xaib thiab koj yuav paub txhua yam txog kev noj jellyfish.
Jellyfish noj
Koj puas tau xav paub dab tsi hiav txwv thiab dej qab zib jellyfish noj? Zoo, cov zaub mov uas lawv noj varies raws li hom, tab sis raws li peb tau hais, lawv suav hais tias feem ntau yog cov tsiaj txhu, ua cov neeg sib tw muaj zog ua tsaug rau lawv cov tsiaj txhu siab, vim cov hom loj muaj peev xwm ntes tau ntses loj. Feem ntau, lawv cia siab rau cov cua thiab dej hiav txwv tam sim no los nrhiav lawv cov zaub mov thiab, thaum nws pom nws, nws ntes nws nrog nws cov tentacles, muab cov tshuaj lom muaj zog, thiab tom qab ntawd nws raug coj mus rau nws lub qhov ncauj.
Thaum cov jellyfish loj, raws li lawv muaj peev xwm ua luam dej vertically, lawv muaj peev xwm haus tau crustaceans, me ntses thiab lwm yam jellyfish me me, yog li nws kuj tuaj yeem hais tau tias lawv yog cov tsiaj nyeg, vim lawv noj yuav luag txhua tus tsiaj uas poob rau hauv lawv cov tentacles.
Raws li txoj cai dav dav, tsis hais qhov loj ntawm jellyfish, nws cov zaub mov tseem ceeb yog plankton, txij li thaum, ua cov kab mob uas ntab, jellyfish. yooj yim los ntawm kev txav lawv cov tentacles hauv dej tuaj yeem ntes plankton. Thiab, raws li peb tau hais ua ntej, qhov loj ntawm lwm cov tsiaj nyeg yuav nyob ntawm qhov loj ntawm jellyfish, txij li cov jellyfish loj dua, qhov muaj feem ntawm kev ntes tus tsiaj loj dua. Lawv kuj muaj peev xwm rhuav tshem cov tawv tawv ntawm qee cov molluscs, txawm hais tias txoj haujlwm no siv sijhawm ntev dua.
Yuav ua li cas jellyfish noj? Feem ntau yog plankton thiab, nyob ntawm lawv qhov loj lossis hom jellyfish, lwm yam tsiaj me dua lawv. Thiab raws li qhov tseeb xav paub, leej twg noj jellyfish? Jellyfish predators txawv nyob ntawm seb lawv pom qhov twg, tab sis feem ntau yog cov vaub kib hiav txwv, cov ntses hnub ci, qee cov sharks thiab qee cov whales tau sau tseg.
jellyfish noj dab tsi ua ntej lawv loj tuaj?
Thaum lub sij hawm larva, polyp, thiab ephyra theem, jellyfish noj ntawm plankton. Yog li ntawd, tsis yog txog thaum lawv mus txog rau cov neeg laus uas lawv tau dhau los ua tsiaj txhu thiab pib noj ntses lossis crustaceans.
How do jellyfish yos hav zoov?
Tam sim no koj paub dab tsi cov dej jellyfish noj, lawv noj raws nraim li cas? Cov tsiaj no muaj peev xwm nrhiav tau lawv cov tsiaj ua tsaug rau sensory receptors uas lawv muaj nyob rau hauv lub tswb (uas yog, sab sauv ntawm lub cev hu ua lub kaus) thiab lawv tentacles.
Yuav luag txhua hom jellyfish qhib lawv lub tsev pheeb suab thiab lawv cov tshuaj lom thaum lawv nkag mus rau lawv cov zaub mov thiab, vim tias lawv tsis sib txawv ntawm tib neeg lossis cov tsiaj muaj peev xwm, kev sib tsoo nrog cov tsiaj no muaj ntau heev. Thaum lawv nrhiav tau cov tsiaj nyeg thiab txeeb tau nrog lawv cov tentacles, lawv tso co toxins los ntawm cov hlwb tshwj xeeb uas, zoo li stingers, tuaj yeem tso cov venom, yog li lawv tuaj yeem ua rau tuag tes tuag taw. lawv cov neeg raug tsim txom. Thaum qhov no ua tiav, lawv maj mam nqa nws mus rau lawv lub qhov ncauj los ntawm lawv cov tentacles. Jellyfish muaj lub plab nkag mus, nyob ib sab ntawm lub qhov ncauj, thiab qhov no yog qhov uas lawv zom cov zaub mov ua tsaug rau kev ua ntawm digestive enzymes.
Raws li peb tau hais lawm, lawv yog cov khoom siv sijhawm, muaj peev xwm haus tau ntau tus tsiaj, yooj yim los ntawm kev ua luam dej lossis nqa mus rau hauv dej hiav txwv. Tsis tas li ntawd, muaj cov txheej txheem yos hav zoov uas jellyfish siv. Ua li no, lawv ib txwm siv lawv cov tentacles, uas yog cov xov zoo uas nyob ib puag ncig lawv lub qhov ncauj thiab hauv qee hom tuaj yeem ua tau ntev heev, ncav cuag 50 meters ntev, txawm tias lwm hom muaj peev xwm muaj lawv luv luv, tab sis tag nrho nrog cov yam ntxwv. stinging hlwb.
Ntawm cov , peb tuaj yeem hu ua ob lub ntsiab: tus cwj pwm caij nkoj thiab tus cwj pwm tsis zoo. Cov tswv yim no ua rau lawv muaj kev sib tw muaj zog hauv cov khoom noj khoom haus, rau qhov uas lawv tuaj yeem cuam tshuam rau cov kab mob ntawm cov kab mob. Cia peb saib seb txhua txoj kev muaj li cas hauv qab no:
- Cruising cwj pwm: nws yog ib yam ntawm jellyfish ntawm qhov kev txiav txim Rhizostomea, qhov twg capture ntawm lawv prey yog nqa tawm los ntawm kev pom. Los ntawm kev txav ntawm lub kaus thiab ua tsaug rau cov dej ntws hauv dej hiav txwv, cov khoom raug xa mus rau ntawm lub qhov ncauj caj npab (uas yog luv tentacles uas nyob ib ncig ntawm lub qhov ncauj kab noj hniav) thiab lub qhov ncauj, qhov chaw uas lawv raug daig los ntawm cnidocytes, uas yog, lub hlwb stinging.
- Ambush cwj pwm: Siv los ntawm jellyfish uas muaj zog, ntev tentacles thiab yog opportunistic predators, feem ntau hom ntawm loj loj. Cov txheej txheem no yog ua luam dej hauv zig-zag thiab ua li no tuaj yeem pab pawg neeg raug tsim txom thiab tom qab ntawd ntes lawv nrog kev txav nrawm.
Nyob hauv video hauv qab no qhia los ntawm Sabrina Inderbitzi peb tuaj yeem pom jellyfish yos hav zoov.
jellyfish digest li cas?
Txawm hais tias lawv lub cev yog qhov qub heev thiab lawv tsis muaj tag nrho cov kabmob uas muaj nyob hauv lwm pawg tsiaj, jellyfish muaj peev xwm ua tiav cov txheej txheem tseem ceeb xws li zom lawv cov zaub mov. Cov tsiaj striking no muaj ib kab noj xwb, uas yog lub qhov ncauj, thiab ib sab ntawm nws yog lub gastrovascular kab noj hniav digestion tshwm sim nyob rau hauv cov kab noj hniav no, uas yog muab nrog ciliated. cell thiab digestive enzymes, los ntawm cov digestion yog nqa tawm thaum cov zaub mov los rau hauv kev sib cuag nrog cov phab ntsa ntawm lub gastrovascular kab noj hniav. Tsis tas li ntawd, qhov kab noj hniav no ua haujlwm raws li lub cev rau faib tag nrho cov as-ham, oxygen thiab raws li ib tug excretory system, vim jellyfish tsis muaj ib tug zoo-differentiated digestive thiab excretory system..
Cov kab noj hniav gastrovascular cais tawm ntawm sab nraud tsuas yog los ntawm lub qhov ncauj xwb, uas yog qhov chaw pov tseg yuav raug tshem tawm, yog li qhov qhib no ua haujlwm li lub qhov ncauj thiab qhov quav. Tom qab ntawd, kev faib tawm ntawm tag nrho cov as-ham yog tswj hwm cov hlab ntsha zoo hu ua radial canals, uas nqa tag nrho cov as-ham mus rau lwm lub cev.
Koj puas paub tag nrho cov no txog jellyfish zom? Tam sim no koj paub tias jellyfish noj dab tsi, lawv tua tsiaj li cas thiab lawv zom lawv cov tsiaj li cas, tsis txhob hnov qab lwm cov ntawv no txhawm rau nthuav koj txoj kev paub:
- Yuav ua li cas jellyfish reproduce?
- jellyfish yug li cas?
