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1·Taxonomically, the very definition of a bird was until recently an animal that has feathers.

直到最近在分类学上，鸟的定义是一只有羽毛的动物。

2·Lichen is a sort of complex life that living in symbiotic relationship with fungi and algae, named by the mycobiont lichen-forming fungi taxonomically.

地衣是真菌与藻类共生组成的生命体，分类学上由其共生菌-地衣型真菌命名。

3·The Genus Potamgeton Linn. in Shaanxi Province has been studied taxonomically, based on field investigations, by using the methods of morphology and anatomy.

本文采用形态学、解剖学等方法对陕西眼子菜属植物进行了分类研究。