图片区亚洲欧美自拍卡通

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.看见众人簇拥着二人进来，敬文娘欣喜地站起身来，敬文，小葱，你们可回来了。巡抚虽无定品，但其实权凌驾于布政使之上。秦始皇嬴政的才能和李斯等诸多才俊的辅佐，还有一个不可忽视的重要原因，那就是战略决策。-Do not need to use "Run as Administrator" when executing for the first time;要那么多钱粮，这议和有什么意义？还不如把这银子和粮食用来征兵打仗。"As long as they are hit, they are basically shot one at a time. The lethality of steel balls is much smaller than that of bullets. A dozen or twenty bullets can also kill one. They are animals after all, and they are still afraid of bullets. However, the speed is fast and it is really difficult to deal with." Liu Guangyuan said.