Homodont dentition muaj nyob rau hauv feem ntau ntawm cov vertebrates xws li ntses, amphibia, thiab cov tsiaj reptilesnyob rau hauv uas tag nrho cov hniav yog functionally thiab anatomically ntawm tib hom, txawm hais tias lawv loj yuav yog. sib txawv nyob ntawm qhov chaw. Qee lub sij hawm ua haujlwm qee cov hniav tuaj yeem tshwj xeeb xws li fangs ntawm nab.
Cov tsiaj hauv qab no twg muaj heterodont dentition?
Pinnipeds muaj heterodont dentition, zoo ib yam li lwm yam tsiaj txhu feem ntau; uas yog, lawv muaj ntau hom hniav raws lub puab tsaig uas tshwj xeeb rau kev ua haujlwm sib txawv. Ua raws li cov lus pom zoo ntawm cov tsiaj nyeg, cov hniav ntawm pinnipeds muaj npe raws li lawv hom thiab txoj hauj lwm hauv kab hniav.
Nws puas muaj homodont dentition?
Homodont dentition yog cov hniav uas muaj tsiaj txhu uas lawv cov hniav yog tib yam. Heterodont dentition ntawm qhov tod tes, yog muaj los ntawm cov tsiaj uas muaj ntau tshaj ib tus hniav morphology. Piv txwv li, tib neeg feem ntau muaj incisors, canines, premolars, thiab molars.
Homodont hniav yog dab tsi?
Hmoodont. (Science: anatomy) Muaj cov hniav zoo sib xws rau pem hauv ntej, zoo li hauv cov porpoises; tawm tsam heterodont. Keeb kwm: Homo- – gr, a tooth. Hais txog cov tsiaj uas muaj ib txheej ntawm tib cov hniav thiab tsis muaj lwm tus, piv txwv li Incisors nkaus xwb. Muab piv rau heterodont.
Npaj muaj homodonthniav?
Abstract. Snakes feem ntau prey ntawm cov tsiaj nyob uas nqos tag nrho. Snakes tua tsiaj los ntawm kev tom (qee zaum nrog envenomation) los yog constriction, uas ua rau asphyxiation. Cov hniav yog homodont thiab muaj cov hniav ntse heev, rov ua dua cov hniav ruaj khov rau cov pob txha lub puab tsaig.
