两栖动物

Rana sylvatica is a special amphibian in China. From biology level, our research have an important theory meanings.

摘要林蛙是我国特有的两栖动物，我们的研究从生物学角度来说具有理论意义。

Rana sylvatica is a special amphibian in China. From biology level, our research have an important theory meanings.

林蛙是我国特有的两栖动物，我们的研究从生物学角度来说具有理论意义。

Granular glands in the frog skins of Ranidae of amphibians, a widely distributed group with over 650 species, synthesize and secrete a remarkably diverse array of peptides with the broad-spectrum antibacterial, antifungal and other biologic activities to protect the organism against a wide range of pathogens, which are believed to have arisen as a result of multiple gene duplication events.

蛙科是全球分布最广泛的两栖动物，种类超过650种。为开拓和适应广阔的栖息地及多样的生态环境，其皮肤腺体中进化产生了结构复杂、种类繁多的抗菌肽。它们除具有广谱抗菌活性外，还有抗肿瘤、抗病毒等生物学活性。

In 1915 tITe were seven species of amphibians in the park, and tITe were abundant bulks of each species.

然而到了1992年在公园中只观察到4种两栖动物，并且每种动物的数量都显著降低。

Our results suggested that in lampreys and most of other vertebrates, there might be only one kininogen gene, which was fused by certain sequences during vertebrate evolution and encoded proteins with more functions; however, another special kininogen gene, only encoding the bradykinin domain with multiple copies in some species, arose only in amphibians for adapting themselves to the unique environment.

在两栖动物中，为了适应其独特的生活环境，又特化产生了另一种激肽原基因，其只编码缓激肽这一种结构域，但在某些物种中，这个结构域具有多个拷贝。

When developers fill in ponds and marshes to build houses, amphibians can't just move somewhere else.

我们基本上可以确定，两栖动物减少的原因之一是它们的栖息地遭到破坏。

It is quite possible that many other reasons are responsible for the decline of amphibians worldwide.

很有可能是其他原因导致了两栖动物数量的减少。

So we are talking frog is the amphibians.

所以我们所说的青蛙是两栖动物。

Amphibians could survive in the water as well as on land.

两栖动物既能在水中生活，也能在陆地上生活。

Maybe you thought Battletoads was a game full of amphibians, but it is actually full of bugs.

也许你以为Battletoads是一个充满游戏的两栖动物，但它实际上是没有错误的。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。