两栖动物

The regional distribution and relative frequency of endocrine cells in R. catesbeiana are similar to those of other amphibia, some characteristic differences are also observed in this species.

与其它两栖动物相比，牛蛙胃肠胰系统内分泌细胞的存在与分布有一些共性，也存在着种间差异。

Amphibians (scientific name: Amphibia ), including shell eggs without all the students, with extremities of vertebrates.

两栖动物（学名：Amphibia）包括所有生没有蛋殼的蛋，拥有四肢的脊椎动物。

Until June 2007, seventy-eight species of Amphibians' complete sequence of mitochondrial genome were presented in GenBank. The gene numbers in the genomes range from 35 to 41; the 78 mtDNA genomes can be divided into 22 types and further clustered as 3 groups based on the gene number, kind and arrangement. The type 4 is a common type among the class Amphibia and other vertebrate, type 8 is common among the three orders of living Amphibia.

对2007年6月13日以前公布于GenBank上的78种两栖动物的线粒体基因组全序列进行了总结、比较和分析。78种基因组中基因的数量从35~41个不等；根据基因的数量、种类及其排列顺序的差别将其分为22种基因组类型，其进而聚为3组，其中类型4为两栖纲与其它脊椎动物的常见类型，类型8为两栖纲中现生3个目的公有类型。

A cold - blooded,smooth - skinned vertebrate of the class Amphibia,such as a frog or salamander,that characteristically hatches as an aquatic larva with gill s.

两栖动物一种两栖纲的皮肤光滑的冷血脊椎动物，如蛙或蝾螈，此类动物的特征是有鳃的幼虫在水中孵化，然后逐渐转变成用肺呼吸的成虫

The vertebrate TSHβ protein sequences had been used to construct Neighbor-joining and Maximum parsimony phylogenetic tree. As analyzed, Andrias davidianus derived from amphibia firstly, which could reflect its original evolutionary status.

采用邻接法和最大简约法对部分脊椎动物TSHβ氨基酸序列构建分子系统树，结果显示有尾目大鲵为两栖动物中较早分化的一支，表明其进化地位较原始。

A cold - blooded,smooth - skinned vertebrate of the class Amphibia,such as a frog or salamander,that characteristically hatch es as an aquatic larva with gills.

两栖动物一种两栖纲的皮肤光滑的冷血脊椎动物，如蛙或蝾螈，此类动物的特征是有鳃的幼虫在水中孵化，然后逐渐转变成用肺呼吸的成虫

Frogs and toads, salamanders and newts, wormlike (and little-known) caecilians—these are the class Amphibia: cold-blooded, creeping, hopping, burrowing creatures of fairy tale, biblical plague, proverb, and witchcraft.

的蚓螈，这些都属于两栖动物纲，牠们冷血、爬行、跳跃，是童话故事里的洞穴生物、圣经里的灾祸，常见于俗谚与巫术里。

Andrias amphibians are more original type, is to study the evolution of animals living fossils.

大鲵是两栖动物中较为原始的种类，是研究动物进化的活化石。

In Gansu, there are 32 species belonging to 16 genera, 6 families of Anura, which are dominant in numbers.

甘肃无尾两栖类动物共有6科、16属、32种和亚种，在两栖动物中占绝对优势。

On comparing with the common type 4, there are 18 genes presenting change in the rest 21 types, most of them are tRNA genes, and gene replacement, gene increase and gene absence are frequently happened; on the contrary, protein genes are more steady, gene change is mostly of gene replacement. The genome size of Gymnophiona are all smaller than 18000 bps and most of them range from 15000 to 16000 bps, those of Urodela and Anura are bigger than 16000 bps, most of Urodela range from 16000 to 17000 bps, most of Anura range from 17000 to 18000 bps.

与类型4比较，其余21种线粒体基因组类型涉及基因变动的基因共有18个，其中变动比较多的是tRNA基因，移位、增多和缺失的发生频率都较大，而蛋白编码基因比较稳定，主要是移位。78种两栖动物中，蚓螈目的线粒体基因组均小于18000bps，多数在15000~16000bps；有尾目和无尾目均大于16000bps，其中有尾目多数在16000~17000bps，无尾目的多数在17000~18000bps。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。