Petromyzon yog cov ntses uas tsis muaj lub puab tsaig uas nteg qe hauv dej tshiab thiab nws cov ammocoetes larvae tom qab metamorphosis rov qab los rau hauv dej hiav txwv. Nws belongs rau Class-Cyclostomata ntawm Phylum-Chordata, thiab subphylum-Vertebrata. … Cov qe loj hlob li ntawm 3 lub lis piam mus rau hauv feeb pob tshab larvae hu ua ammocoetes.
Puas Myxine nteg qe hauv dej tshiab?
YPetromyzon, Myxine. Petromyzon (lub lamprey) belongs rau ntu Agnatha ntawm sub-phylum-Vertebrata. Lawv muaj ntev, ntsuab xim av, cylindrical lub cev nrog du scaleless, slimy daim tawv nqaij, lub puab tsaig lub qhov ncauj, thiab lwm yam. Lawv
nteg qe hauv dej tshiab tab sis lawv cov ammocoete larvae (qis) tom qab metamorphosis rov qab mus rau dej hiav txwv.
Puas yog ntses dej hiav txwv tab sis nws rov qab mus rau nws lub tsev dej tshiab los tso qe?
Teb: Petromyzon (Lamprey) belongs rau Chav Kawm- Cyclostomata ntawm Phylum-Chordata. Nws yog cov ntses uas tsis muaj lub puab tsaig uas nteg qe hauv dej tshiab.
Yuav ua li cas cov tsiaj marine larvae raug metamorphosis hauv dej tshiab?
Lamprey is the marine vertebrate larvae undergo metamorphosis in fresh water.
Tus larva ntawm Myxine yog dab tsi?
Tus Ammocoete larva yog theem larval ntawm lub sijhawm qub, cov ntses tsis muaj lub puab tsaig, hu ua lamprey lossis Petromyzon. Cov tub ntxhais hluas ammocoete larvae siv ntau xyoo nyob rau hauv tus dej, qhov chaw lawv nyob burrowed nyob rau hauv zoo sediment, lim-piv rau detritus thiab cov kab mob thaum cov laus lampreys spawn nyob rau hauv cov dej thiab ces tuag.
