chordates

chordates

美 ['kɔrdets] 　英 ['kɔ:dets]

• n.【动】脊索动物类
• 网络脊索动物门；脊椎动物；脊索类

词形变化

复数：chordates  

英汉解释

n.	1. 【动】脊索动物类

英英解释

n.	1. an animal that at some stage in its development has a main dorsal nerve cord, a skeletal rod , and gill slits, including all vertebrates and some primitive invertebrate ocean animals.

例句

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