Video: Puas yog amphibian qe Isolecithal?
2024 Tus sau: Isaac Wood | [email protected]. Kawg hloov kho: 2023-12-15 23:28
Yog, lub qe ntawm ib amphibian yog cais raws li isolecithal kev . Ua li no, amphibian qe zoo li ntses qe nrog ib tug me me, centrally tso yolk
Ntawm no, hom qe dab tsi yog amphibian muaj?
Cov noog, cov tsiaj reptiles, thiab tsiaj txhu muaj amniotic qe . Vim amphibian qe tsis txhob muaj ib amnion, qe yuav qhuav yog tias lawv tau muab tso rau hauv av, yog li ntawd amphibians lay lawv qe hauv dej. Cov larvae ntawm feem ntau amphibians muaj gills thiab zoo li ntses thaum lawv yug los.
Ib sab saum toj no, tib neeg qe Isolecithal? Nws tseem hu ua Polylecithal qe . Isolecithal los yog Homolecithal Qe : Hauv isolecithal qe , qhov me me ntawm cov qe tam sim no yog sib npaug thoob plaws hauv ooplasm (xws li echinoderms, Amphioxus, tsiaj txhu). Tus mob no feem ntau pom nyob rau hauv qe nrog me ntsis ntawm yolk.
Tsis tas li ntawd, Isolecithal qe yog dab tsi?
Isolecithal qe hais txog kev faib tawm ntawm yolk nyob rau hauv cytoplasm. Nws tshwm sim nyob rau hauv cov kab mob uas muaj me ntsis yolk, zoo li cov tsiaj.
Kev faib tawm ntawm qe yog dab tsi?
Vertebrate qe tuaj yeem yog cais los ntawm tus txheeb ze ntawm yolk. Yooj yim qe nrog me yolk yog hu ua microlecithal, nruab nrab-qhov loj me qe nrog qee cov yolk hu ua mesolecithal, thiab loj qe nrog ib tug loj concentrated yolk yog hu ua macrolecithal.
Pom zoo:
Hello Kitty yog dab tsi yog tias tsis yog miv?
Sanrio, Kitty cov chaw tsim khoom, kho tus neeg saib xyuas ntawm LA cov khoom pov thawj ntawm lub cim thoob plaws no thaum shetried rau daim ntawv lo Hello Kitty ib tus miv, raws li LATimes. Curator thiab Hello Kitty tus kws tshaj lij Christine Yano tau hais tias lub tuam txhab tau ceeb toom nws tias "Hello Kitty tsis yog acat. Nws yog ib tug cartoon. Nws yog ib tug me nyuam ntxhais
Vim li cas vaub kib tsis yog amphibian?
Ib tug vaub kib tau muab cais ua cov tsiaj reptile es tsis yog anamphibian vim tias lawv tau yug los rau hauv av, yug nrog lub ntsws, thiab tsis ua rau metamorphosis. Cov no yog cov yam ntxwv ntawm tag nrho cov tsiaj reptiles, txawm tias cov uas siv sij hawm ntev hauv dej thiab muaj kev hloov mus rau aidswimming
Puas yog nab yog herbivore carnivore los yog omnivore?
Snakes yog carnivores. Cov zaub mov tshwj xeeb uas lawv noj yog nyob ntawm tus nab qhov loj, hom thiab chaw nyob, tab sis lawv cov tsiaj muaj xws li kab, qe, nas, ntses, qav thiab lizards. Snakes lub puab tsaig muaj hinges uas cia lawv qhib dav thiab noj cov tsiaj loj. Qhov no tso cai rau qee tus nab noj tsiaj loj
Yuav ua li cas koj qhia yog hais tias tus cwj pwm yog muab los los yog poj koob yawm txwv?
Hauv peb qhov piv txwv, tus Tsov tus tw fuzzy, pob ntseg loj, thiab whiskers yog muab los ntawm cov yam ntxwv, thaum tus Tsov tus tw tawv nqaij, pob ntseg me, thiab tsis muaj whiskers yog poj koob yawm txwv. Lub ntsiab lus tseem ceeb yog tias qhov txiaj ntsig tau tshwm sim tuaj yeem tshwm sim los ntawm kev poob lossis nce ntawm qhov tshwj xeeb
Puas yog nab yog tsiaj txhu los yog omnivore?
Snakes yog carnivores, uas txhais tau hais tias lawv yuav noj tsuas yog nqaij nrog rau ib leeg. Qee tus nab yog cov neeg yos hav zoov thaum lwm tus yuav pw tos tos lawv cov tsiaj