agnathan
Số nhiều: agnathans
Từ liên quan
gnathostomevertebratechordatelampreyhagfishcyclostomejawgillfincartilageskeletoncraniumnotochordpharynxevolutionphylogenytaxonomyspeciesgenusfamilyorderclassanatomymorphologyprimitiveancestorextinctfossilpaleontologymarineaquaticoceanwatermucusparasitepredatorpreyfeedingrespirationcirculationheartbloodhemoglobinskinscaleepidermisdermisnervebrainspinal cordsegmentationbilateralsymmetryembryodevelopmentlarvametamorphosisadaptationdivergencecladogramlineagebiologyzoologyichthyology