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. 因皇帝病情越来越严重，皇太子李信答应太后会尽快和早已订下婚约的女孩子结婚，而此时的皇太子信还只是一名高中生。他明白身为皇太子，这个特殊的身份自己不会有选择个人喜好的权利。信在认可婚事之前，曾经秘密交往了一个女朋友闽孝琳，但孝琳拒绝了信的求婚，事到如今这反而让信感到庆幸，因为他明白一旦嫁入宫中，将不再会有自己的个性，每个人都会变成失去自我的人偶，与其让自己所爱的人遭遇那样的境况，还不如随便找一个自己不认识的女孩子，更能让他感到安心。Not only did I hear the voice, Almost half of the entire position 149 heard it, Then the position was bombed, The soldiers all took up their weapons and held the horses and bees in the air desperately to "hug the fire" (note: meaning to pull the trigger and fire), Even if there are some comrades who did not hear the cry of "fight", When they saw others firing, they followed suit. Those big wasps are abundant, Flying densely and bulky, So when we started shooting, The shooting rate is quite high, After the sound of the gun became one, it gradually became equal to the "buzzing" sound. No one can beat anyone, It feels strange that the two sounds are mixed together. Now that I think about it, It's like a rock band playing "heavy metal" (here "heavy metal" is a genre of rock music, Before the 1970s, This rock style is called 'hard rock', It was later renamed 'heavy metal', Of course, this is one of the more well-recognized explanations about the origin of the "heavy metal" genre of rock music. There are several other different explanations, As it is not relevant to this article, It will not be discussed in detail here), Then they gathered fire and shot for more than ten seconds. The left and right sides of the position were covered with the smashed bodies of this big wasp like rain. But then the bullets hit them more and more scattered in the air, finally forming a "circle", covering the whole position under, and then one by one dive to the ground, although they scattered, but in this way their distribution area is wider, and the spacing is widened, not as dense as before, plus flying fast,众人心急地扫荡了几大碗饭下肚，抬头一看，小姐还在慢慢喝汤呢，连白果和虎子黑娃吃饭都斯文许多。故事讲述华山派大弟子令狐冲，生性豁达不羁。偶遇剑宗高人风清扬授以“独孤九剑”，又意外尽得五岳各派剑法精髓，引致师父岳不群猜疑，藉口逐出师门。不群内里奸险非常，为独得《葵花宝典》，竟设计令武林各派自相残杀，唯最终作法自毙。而冲最终则辗转练成“吸星大法”，成为恒山派掌门。由Liz Meriwether负责﹑J.J. Philbin执笔的ABC单镜头喜剧《单亲家长 Single Parents》是根据她们所写的故事改编，讲述一群失衡的单亲家长在彼此的帮忙下抚养孩子及寻找新爱情。Taran Killam饰演单亲父亲Will Cooper，女儿是他的一切，不过他太着紧女儿令他不太像爷们﹑Leighton Meester饰演单亲母亲Angie，有个过份依恋她的儿子，坚强的她多年来一直勤奋工作维持生计﹑Brad Garrett饰演富有﹑退休的乡村俱乐部成员Douglas，他为人家长及对性别定位看法都很老派，而且认为大小问题都能用钱解决。Kimrie Lewis饰演单亲母亲Poppy，有点嬉皮的她教导儿子要经常保持真我﹑Jake Choi饰演20岁的Miggy，他在妻子去了大学后独自养育儿子，这使他被弄得每晚都睡眠不足。Marlow Barkley饰演Sophie﹑Tyler Wladis饰演Graham﹑Devin Trey Campbell饰演Rory﹑Grace Hazelett饰演Emma﹑Sadie Hazelett饰演Amy。当血滩扩散开来之时，另一名少女开始设法进入这个岛来打破现在的僵局。
