单词chordate
n.: 【动】脊索动物类
网络: 脊索动物门；脊椎动物；脊索类
具有脊索的
【动物;动物学】脊索动物类
复数：chordates
Recent studies have discovered SL trans-splicing in new metazoan phyla, including the chordates.
最近的研究发现Sl的反式剪接的新后生动物门，包括脊索动物。
Most chordates have a high-pressure, closed circulation with a ventral heart.
大多数脊索动物循环具有高压的、封闭的循环系统，心脏位于腹面。
There are about 45. 000 species of chordates , occupying marine , fresh and brackish water and terrestrial habitats .
有大约45.000种脊索动物，它们占据着海、淡水或淡咸水和陆地的生态环境。
Chordates that lack a backbone, such as sea potatoes, sea peaches, and sea squirts.
没有脊柱的脊索动物，例如海土豆、海桃子和海蛸等。
superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys;
鳗鲡状的脊索动物超类，没有咽喉和骨盆鳍；
Zoologists place chordates and echinoderms on one major branch of the
动物学家将脊索动物和棘皮动物放在演化树的同一主要分枝上，而将