无脊椎的

The small, free-swimming, ciliated aquatic larva of various invertebrates, including certain mollusks and annelids.

担轮动虫多种水生无脊椎动物，体型很小能自由游动的、有纤毛的幼虫，包括某些软体动物和环节动物的幼虫

Spermatozoa of Hemicentrotus pulcherrimus belong to the type of flagelloform, it has a coniform cell nucleus on its head, a small apical body on its forepart, four mitochondria, a couple of central granules, and a flagellum.

海胆精子与其他无脊椎动物的精子一样，属于鞭毛型，其头部包含一个圆锥形的细胞核，前端配有一个小的顶体，还包括4个线粒体、一对中心粒和一根鞭毛。

This German physician gave up his medical practice and started to study the biological species, after reading The Origin of Species by Darwin in 1859. He became a world-known embryologist later and had named over 150 invertebrates.

这位德国医生在一八五九年读到达尔文写的《物种起源》后放弃行医，转行从事物种的研究，曾为一百五十多种无脊椎动物命名，后来成为举世闻名的胚胎生物学家。

"Flame cell:a hollow cell in the excretory system of certain invertebrates , including flatworms and rotifers, containing a tuft of rapidly beating cilia that serve to propel waste products into excretory tubules."

"焰细胞：某种无脊椎动物在排泄系统中的空细胞，具有用来把废物推向排泄管的一簇能迅速摆动的纤毛。"

In its searchable multidiscipline resources, information of Botany, Herpetology, Invertebrates, Entomology, Ichthyology, Mammalogy, Mycology and Microbiology, Ornithology are included.

它的可查询的、多学科的资源包括植物学、爬虫学、无脊椎动物学、昆虫学、鱼类学、哺乳动物学、真菌学、微生物学和鸟类学信息等。

These results indicate that the dHira transcripts are maternal and they may play very important roles during early embryogenesis. While the accurate function in development of Hira still remains unclear.

本研究将果蝇Hira基因的cDNA克隆到载体UASp中，运用UAS-Gal4系统，通过功能获得性突变的方法使dHira在果蝇早期胚胎中大量表达，来研究Hira在无脊椎动物果蝇中的作用。

It is characterized by the appearance of algae and a proliferation of marine invertebrate animal forms, but no true plants.

特征是藻类的出现和海洋无脊椎动物的繁盛，但该时期没有出现真正的植物。

Most of the discoveries were simpler life forms known as invertebrate s, or animals without backbones.

发现中的大部分都是较为简单的生活方式，以无脊椎动物为名或是无脊骨的动物。

Why is it so important to preserve biodiversity. The invertebrate represent 95 % of the living world.

透过景致怡人的亮丽风光，带出为何要保护大自然中多种虫虫生物的重要性；无脊椎动物占了所有生物种类的95%。

There are some 2,000 species of sea stars, such as this striped invertebrate off Ireland's Atlantic coast, living in all the world's oceans.

这是一只生活在远离爱尔兰的大西洋海岸带斑纹的无脊椎动物--海星，这里有近2000种，它们生活在世界上所有的海洋。

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。