脊椎动物

Pepsinogens are zymogens of pepsins,aspecific proteases working as digestive enzymes in vertebrate stomach,of which biological and molecular properties have been extensively studied.

胃蛋白酶原是胃蛋白酶的前体，是脊椎动物中普遍存在的非特异性蛋白消化酶，胃蛋白酶的生物学特性及分子特性已得到了充分研究。

If we want to, we can trace the chain of human descent back to the appearance of vertebrates, or even to the photosynthetic cells which lie at the start of life itself.

如果我们非要这样做的话，我们可以把人类的沿袭之链追溯到脊椎动物的出现，或比它更早的光合细胞，这些细胞正是生命的起源。

If we want to, we can trace the chain of human descent back to the appearance of vertebrates, or even to the photosynthetic cells that lie at the start of life itself

如果我们非要这样做的话，我们可以把人类的沿袭之链追溯到脊椎动物的出现，或比它更早的光合细胞，这些细胞正是生命的起源。

PAX9 is a newly discovered member of Pax family, existing in all vertebrates, which is a transcription factor that takes a key responsibility in tooth development.

PAX9为Pax家族新发现成员，存在所有脊椎动物中，是牙齿发育过程中起关键调控作用的转录因子。

The locality is special because of the soft-bodied preservation of a wide diversity of fossil invertebrate animals.

该地区是特殊的，因为软健全维护各种各样的脊椎动物化石。

A cold-blooded, smooth-skinned vertebrate which characteristically hatches as an aquatic larva, breathing by gills.

一种皮肤平滑的冷血脊椎动物，以孵化为水上幼虫为特点，用腮呼吸，成熟后用肺呼吸。

Any of various small, six-legged larvae of mites of the family Trombiculidae, parasitic on insects, humans, and other vertebrates.

恙螨寄生在昆虫、人和其它脊椎动物上的恙螨科的形小且有六条腿的螨幼虫。

The results showed that the structure of retina in Lasiopodomys mandarinus exhibited typical structure of vertebrates, including retinal pigment epithelium, rod cone layer, outer nuclear layer, outer plexiform layer, inner nuclear layer, inner plexiform layer, ganglion cell layer, and nerve fiber layer from outside to inside.

结果表明，棕色田鼠的视网膜结构呈典型的脊椎动物视网膜结构类型，由外向内分别为色素上皮、视锥视杆层、外核层、外网层、内核层、内网层、节细胞层、神经纤维层。

Thus, they neatly side-stepped the problem of explaining how the nerve cord got from the worm's tummy to the vertebrate's back.

如此说来，他们只是在逃避回答神经网是如何从蠕虫的腹部进而发展到了脊椎动物的背部。

Malaria is transmitted by the bite of a mosquito in which hundreds of sporozoites are released into the vertebrate host's bloodstream.

疟疾由蚊子的叮咬传送数百子孢子被释放入脊椎动物的主人的血液。

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。