Video: Lub luag haujlwm ntawm stinging cell yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txhua tus Cnidarians muaj tentacles nrog stinging hlwb nyob rau hauv lawv cov lus qhia uas yog siv los ntes thiab subdue prey. Qhov tseeb, lub npe phylum "Cnidarian" txhais tau tias " txhav tus tsiaj. “Qhov stinging hlwb "yog hu ua cnidocytes thiab muaj cov qauv hu ua nematocyst. Lub nematocyst yog ib tug coiled xov zoo li stinger.
Kuj paub yog, dab tsi yog stinging hlwb?
Cnidarians muaj kev tshwj xeeb hlwb lub npe hu ua cnidocytes ( stinging hlwb ”) muaj organelles hu ua nematocysts (stingers). Cov no hlwb muaj nyob ib ncig ntawm lub qhov ncauj thiab tentacles, thiab pab immobilize prey nrog toxins muaj nyob rau hauv lub hlwb . Nematocysts muaj cov xov coiled uas tuaj yeem dais barbs.
Tsis tas li ntawd, Cnidoblasts lossis stinging hlwb yog dab tsi? CNIDOBLASTS YOG TXOJ KEV CELLS Pom hauv CIDARIA. PUAS YOG IB TUG NEEG A TXOJ KEV CELL ORGANELLE HU NEMATOCYST. Cnidoblast yog a cell nyob rau hauv lub epidermis ntawm coelenterates nyob rau hauv uas ib tug nematocyst yog tsim. hauv ib leeg cnidoblast yog ib tug coiled xov, ib tug nematocyst, uas explodes tawm ntawm lub cell.
Yog li ntawd, dab tsi yog lub luag haujlwm tseem ceeb ntawm nematocysts?
Cov kev ua haujlwm ntawm nematocysts yog los tawm tsam predators. Nematocysts yog me me stinging hlwb uas nyob rau ntawm lub tentacles ntawm jellyfish. Lawv tua
Dab tsi yog 4 lub luag haujlwm ntawm nematocysts?
Tsawg yog to taub txog yuav ua li cas nematocysts ua haujlwm nyob rau hauv ntes cov tsiaj txhu. 25 lossis ntau dua paub hom nematocysts feem ntau categorized rau plaub pawg ua haujlwm: cov uas tho (penetrants), entangle (volvents), los yog ua raws li cov tsiaj txhu (glutinants), thiab cov uas ua raws li cov substrate.
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