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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.Let the winners of team a and team b play against team c……第二天一早，江南电视台副台长魏明林就打来电话。原东北抗联团长老邱在艰苦卓绝的条件下抗击日寇多年，与组织失散后，他辗转加入了八路军江东军分区。国民党滇军278团一直受到中央军排挤，团长宋云杰忍无可忍决定率部投奔八路军。军区领导知情后派遣熟悉当地段落三，讲述的是三个臭皮匠自娱自乐的故事。只有他们三个人，互相插科打诨，制造喜剧。电视剧讲述了曾经是不良少女的新手护士·立花遥（中条彩未饰演）和想快速结了婚辞掉工作但苦于找不到合适的结婚对象的34岁的前辈护士·三原夏美（水川麻美饰演）于四季综合医院外科住院部的医疗战线上共同奋斗成长的故事。