n.后生动物
adj.后生动物的
ARE THESE THE METAZOAN BODY FOSSILS FORMED BEFORE 1400 MA? 前的后生动物实体化石?
Apoptosis can be defined as a highly regulated cellular suicide program which is crucialfor metazoan development. 凋亡是多细胞动物生长中重要的细胞自杀性程序。
The metazoan zooplankton species were mainly composed of eurythermal ones and only a few thermophil ones were also found. 星湖的后生浮游动物基本上为广温种类，兼具一些嗜暖种。
Nematodes are the most abundant and diversified group in the animal kingdom and four out of every five metazoan on earth is a nematode. 线虫是动物王国中多样性最丰富的类群,地球上大约有4/5的动物是线虫。
It was there, a half billion years ago, that tiny metazoan organisms first evolved systems for sequestering and circulating fluids. 五亿年前，就是在那里，微小的后生动物首先进化成与外隔绝的循环液体系统。
Soil nematodes are the most abundant metazoan, which have various types of life-history and feeding habits, and play a key role in soil food web. 线虫作为土壤中数量最丰富的后生动物，其生活史和取食类型多样，在生态系统中发挥着重要作用。
