noun ダウンロード 🔗共有 脊索動物 A member of the phylum Chordata; numerous animals having a notochord at some stage of their development; in vertebrates this develops into the spine Examples : "Humans, like fish, birds, and reptiles, are all classified as chordates because they possess a notochord at some point in their development. " 人間は、魚、鳥、爬虫類と同様に、発生のある時点で脊索を持つため、すべて脊索動物に分類されます。 animal biology organism anatomy AIとチャット語彙ゲーム読解練習