อาณาจักรสัตว์ : Phylum Chordata สาระ ความรู้ ข่าวสาร ความบันเทิง ของ

Chordata 3 B Aves chordata Unlike its subphylum Vertebrata, Chordata features the subphyla Cephalochordata and Urochordata as two subphylums whose members exist without backbones Modern chordata The meaning of CHORDATA is a phylum comprising animals having at least at some stage of development a more or less well-developed notochord,

chordata Unlike its subphylum Vertebrata, Chordata features the subphyla Cephalochordata and Urochordata as two subphylums whose members exist without backbones Modern