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Updated June 30Human's classification consciousness and practice on vegetation, animals and other organisms have existed since ancient times. They existed in ancient China and ancient Greece, and developed into a science-taxonomy. However, the early classification was mainly based on morphology, such as the shape of roots, stems and leaves. Taxonomy based on morphology is the oldest discipline in biology, and the earliest phyla, classes, orders, families, genera and species basically came from here. Taxonomy in the general sense refers to a specialized discipline that identifies, identifies, describes, names and classifies organisms. The task and purpose of taxonomy can be divided into two parts:农村励志电视剧《苦乐村官之一个都不能少》 2019年陕西重大精品项目涩涩青恋，意难明。二层仪门内，一条突出地面的通道直通正殿前的丹墀，丹墀一丈来宽，正殿五开间，两侧带耳房。隐瞒祥瑞，私藏神物？张家的家业竟然都是乌龟的功劳，真是天大的笑话。刘川是电竞圈的高手，屡屡获奖，在巅峰状态时被父母抓回继续完成学业。在校园里他不甘寂寞，偷偷重新组织团队，集结了徐策、蓝未然、秦夜、吴泽文等兄弟，为团队取名“龙吟”。队友们都是有潜质的菜鸟，他一手训练新人，一步步将团队带入强队行列。并与华夏、七星草、铜雀这样的一流竞技团队进行了PK。激烈的比赛让他们成长迅速，也让彼此的感情更加靠近、明朗 。