长期以来，进化生物学家常常用比较生物学方法辅以化石证据来构建生物系统树

长期以来，进化生物学家常常用比较生物学方法辅以化石证据来构建生物系统树，获得了生物进化历史的主要框架。然而，由于形态和生理性状的进化式样极其复杂，加上化石资料不够完整，因而所构建的系统树往往存在不少争议，难以反映生物进化历史的全貌

結果 (英文) 1:

Long, evolutionary biologists often use biological methods supported by fossil evidence to construct a tree of biological systems, access to the main frame of biological evolution. However, the evolutionary model is extremely complex due to morphological and physiological traits, combined with fossil data, incomplete, thus the build system tree there is often considerable controversy, it is difficult to reflect the evolutionary history of panorama

結果 (英文) 2:

For a long time, evolutionary biologists often complemented by fossil evidence comparative biology approach to build biological systems trees, won the main framework of biological evolutionary history. However, due to the evolution of morphological and physiological traits design is extremely complex, plus the fossil record is not complete, and therefore the presence of phylogenetic trees are often a lot of controversy, it is difficult to reflect the whole picture of the history of biological evolution

結果 (英文) 3:

For a long time, evolutionary biologists often use comparative biology method with fossil evidence to build biological system tree, obtained the main framework of biological evolution history. However, due to the morphological and physiological characteristics of evolution pattern is extremely complex, and fossil data is not complete, so the construction of phylogenetic trees tend to have a lot of controversy, it is difficult to reflect the evolutionary history of