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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:HBO宣布续订少年题材剧《#迷醉#Euphoria》第二季。由Neil Goldman﹑Garrett Donovan﹑Bob Daily负责编剧及执行制片的CBS多镜头喜剧《超级甜甜圈 Superior Donuts》，该剧由Tracy Letts的同名剧场表演改篇，背景为一间甜甜圈店的老板和他手下的年轻员工，讲述他们与客人之间的关系。10. The "length" and "width" of a ship mean its total length and maximum width.本剧改编自松尾从捡到一张机票开始波澜万丈的“演员之道”。