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兰顿失去了他的父亲阿德洛克，现在已经在边境城镇贝尔福雷斯特参加了塔州联盟军校。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.我实在被她闹得受不了，就懒得理她，自己睡了，谁知她就尿床了。嗤嗤。2. Mathematical period: For a function f (x), if there is a non-zero constant T, so that when x takes every value in the domain, there is f (x + T) = f (x), then the function f (x) is called a periodic function. The nonzero constant T is called the period of this function.黎章出发前。但事实上却不能如愿，六国都深切地感受秦国的威胁，他们都明白单纯以自己一国实力，不是秦国对手，于是就有了合纵之法。