脊椎动物

The middle zone of the mesoderm of a chordate vertebrate embryo, from which excretory tissue develops.

中胚叶节脊索类脊椎动物胚胎的中胚层的中间部分，最终会发育成排泄组织

"Chordate:any of numerous animals belonging to the phylum Chordata, having at some stage of development a dorsal nerve cord, a notochord, and gill slits and including all vertebrate s and certain marine animals, such as the lancelets."

脊索动物：包括所有的脊椎动物以及如文昌鱼之类的海洋动物的脊索动物门的大量动物中的任一个，在某些生长阶段有背部神经索、背索及鳃裂。

Frog kind it is to point to frog , toad wait for the amphibian that does not have a tail, they are to belong to chordate door, vertebrate on classification inferior key link of the door, amphibious.

蛙 蛙-简介蛙类是指青蛙。蟾蜍等没有尾巴的两栖动物，它们在分类上是属于脊索动物门。脊椎动物亚门。

The snake belongs to chordate phyla vertebrate reptile squamata serpents in the animal kingdom.

蛇在动物界属脊索动物门、脊椎动物亚门、爬行纲、有鳞目、蛇亚目。

It is clear from the comparison of the number of AmphiL34 and AmphiS29 genes with that of rat L34 and S29 genes that duplication of L34 and S29 genes occurred in vertebrates like rat. It therefore appears that the housekeeping ribosomal proteins genes such as L34 and S29 also underwent large-scale duplication during the early chordate evolution.

这一结果分别与大鼠7-9个L34拷贝数和14-17个S29拷贝数相比较，证明持家核糖体蛋白基因L34和S29基因在脊椎动物起源与进化过程中发生了大规模扩增，符合两轮基因倍增规律。

Annexin B1 and arthropod formed an independent branch in the species phylogenetic tree; nemathelminth, plant, Ayes and vertebrate formed a branch; pprotozoa, cnidaria, amphibia and chordate formed another branch.

在物种进化上，Annexln B1和节肢动物为1支，新杆线虫、植物、鸟类和脊椎动物为1支，原虫、腔肠动物、两栖类和脊索动物为1支。

Anomalocaris, chordate, and haikouichthys

和脊椎动物的先躯者-脊索动物-海口鱼等，出现在云南澄江

The mitochondrial genomic sequence in snappers and cobia are similar to other vertebrate mitochondrial genomes with respect to gene order and genomic organization.

线粒体基因组的比对分析表明本文测定的mtDNA基因组的绝大部分区段与GenBank中现有的脊椎动物的序列有较高的同源性。

Humans are therefore separated from the coelacanth by hundreds of millions of years of evolution, yet the two organisms still share critical DNA sequences.

在海洋生物向陆地脊椎动物的不断进化中该因子一直处于活跃状态，直到物种登入到陆地上。而在腔棘鱼身上该因子仍然处于活跃的状态。

When the researchers compared the human ultraconserved element to all the DNA sequences in the public database GenBank, the closest match was to DNA from the coelacanth -- an ancient fish thought to have gone extinct millions of years ago until a live specimen was caught in 1938 off the east coast of South Africa.

该鱼类一度被认为已经绝种，直到1938年在南非的东海岸又重新被发现。腔棘鱼是一种3亿6千万年海洋生物向陆地脊椎动物进化过程中至关重要的鱼类的后裔。虽然人类和腔棘鱼的演化从那时就分道扬镳，然后经过百万年的演化人类和腔棘鱼仍然共享着类似的重要基因片断。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。