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The second classification principle of organisms is the lineage classification principle aiming at establishing evolutionary lineage. The classification method following this principle is called lineage classification. The representative of pedigree classification is "branch systematics". It advocates that the branches in evolution should be taken as the criteria for identifying and distinguishing classification units and the basis for determining the pedigree relationship of each classification unit. The so-called co-ancestral proximity (similar to a group of people being a grandfather) is used to measure the genetic relationship between different taxa and determine their position in the pedigree. The classification system finally established is an evolutionary pedigree reflecting the history of phylogeny, which is a deeper description of biological relationship. In other words, the basic principle of pedigree classification is that the classification system conforms to the evolutionary pedigree. Pedigree classification is only applicable to organisms and cannot be used for abiotic classification.田遥勉强对山芋笑道：老远就闻见一股臭气。位于安达曼海中的神秘私人岛屿哇丽宫，海碧天青，天长水阔。然而，旖旎的海岛风光下却波涛汹涌，暗藏杀机。一桩桩离奇事件接二连三；一个个花样女郎神秘失踪。命案频发，是自杀还是他杀？是遭了天谴还是中了暗算？美丽、大方、开朗的女作家，因为好友妹妹消失在这里而好友又恰遇车祸，毅然踏上小岛想要寻求失踪的谜底尹旭不禁大为着急，若不是自己身份敏感，尹将军甚至想自己上去和项庄过两招。(6) Relevant quality management documents;在朝鲜时代，很多人要与素未谋面的人结婚并相伴一生。基于这种原因，有时结婚对像被掉包都可能无从知晓。而如果掉包对像是男人！横冲直撞的新婚生活轻喜剧，一对壁人成为父母政治婚姻的牺牲品，婚礼上才发现新娘是男人？却在慢慢接触中对彼此产生了微妙的依恋…兄妹们听了，一齐笑了起来。