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Human'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:该剧由@梁婧娴@蒲熠星@薛泽源Aaron主演，讲述了玛丽苏小说作者与乐队主唱之间的甜蜜爱情故事。Defense Methods: The most effective and reliable defense methods against consumptive Flood attacks, such as SYN Flood, ACK Flood and UDP Flood, are:Repeated decoction can be used to obtain dye solution for 4-6 timesBasketballDNS NXDOMAIN Flood说完，他翻着眼睛、掰着手指，洋洋洒洒列出一溜清单，惊得简先生和青鸾公主目瞪口呆，黎章等人也都干咽口水。