Discovery of the silurian chitinozoan fauna in the mazha area , southern yecheng , west kunlun 西昆仑叶城南部麻扎地区志留纪几丁虫动物群新发现
They are a superb illustration of the key stages of evolution of australia ' s unique fauna 它们完美地展示了特殊的澳大利亚动物群的各个进化阶段。
In any flock of birds or herd of animals there will always be those that are ascending and will survive 不过在任何鸟群或动物群中总是有能提升和幸存的部分。
Were this to happen , there would undoubtedly be an associated wave of changes in the fauna as well 如果这些情况发生的话，那么毫无疑问在动物群中将有一场巨大的变化。
Classification of environmental conditions . part 2 : environmental conditions appearing in nature . fauna and flora 环境条件分类.第2部分:自然环境条件.第7节:动物群与植物群
Classification of environmental conditions - environmental conditions appearing in nature - fauna and flora 环境条件分类.第2部分:大自然呈现的环境条件.第7节:动物群和植物群
The food supplies necessary to sustain the large vent communities , however , must be many times the ordinary fallout 然而，维持喷口处庞大动物群所必需的食物供应必须数倍于一般的沉降物。
Ree characteristics and their geological implications of the strata bearing panxian fauna of the middle triassic of guizhou province 贵州中三叠世盘县动物群产出地层的稀土元素特征及其地质意义
Soil quality - biological methods - effects of pollutants on soil fauna - determination of effects on reproduction on earthworms eisenia fetida 土质.生物方法.污染物对土壤动物群的影响.蚯蚓繁殖效应的测定
