Comparative study on some biological characteristics of laboratory populations of two exotic leafminers 两种外来斑潜蝇实验种群生物学特征比较
Ammonia removal behavior and biological characteristics of zeolite media in a biological aerated filter 沸石曝气生物滤池去除氨氮性能及生物学特征分析
Objective to investigate the aging of vascular endothelial cells and its following changes in cell biology 摘要目的探讨内皮细胞衰老过程中细胞生物学特征变化。
Many papillary carcinomas contain follicular elements , but this does not alter the basic biology of the tumor 许多乳头状癌含有滤泡成分，但这并不改变肿瘤的基本生物学特征。
The content in the paper is included in the man - induced technique , biological characters of polyploid and the potential values 摘要综述了禾谷类作物的人工诱导、生物学特征特性、多倍化过程中基因组的动态变化研究及其潜在价值。
The morphological characters as well as biological and paleontological findings were employed for analysis of systematic relationship in early times 早期对壁虎类系统发生关系的研究主要以形态学性状为依据，同时结合生物学特征及古生物学方面的发现。
Sheng h , zhang e . 1993 . a comparative study on morphology of deer hair . 73 - 79 . in deer of china , biology and management , edited by ohtaishi & sheng . elsevier 张恩迪,盛和林. 1992 .鹿类的生物学特征.中国的鹿类动物,华东师范大学出版社(盛和林主编） : 19 - 40
This paper makes a review on the reproductive biology characteristics of grouper and on its current research situation in artificial breeding technology , meantime , puts forward the problems currently existing in research of artificial rearing 摘要就石斑鱼繁殖生物学特征以及人工繁育研究的现状进行了综述，并提出了当前人工繁育研究中存在的问题。
This investigation of the two species is mainly dealing with their morphological characters , population biology , pollination biology and molecular biology , based on the following methods such as section slides , sem , artificial pollination , rapd analysis and gravity glass slides . this study is intended to demonstrate the distribution patterns of the populations for the two species , the numerical and spatial characteristics of ecological difference , the biological characters of seeds , pollination mode and reproductive stratigies , and molecular genetics . in light of the results from this study , the reasons that resulted in the present dangerous situation for the two species were discussed , and the suggestions for protecting them were proposed 本研究以种群为单位，采用石蜡切片、扫描电镜、重力玻片、人工授粉、 rapd分析等方法，对两种植物的形态生物学、种群生物学、繁殖生物学和分子生物学等方面进行了详细研究，以揭示它们的种群分布类型及成因、种群生态环境差异的数量特征和空间特征、种子生物学特征、传粉和生殖策略以及种群分子遗传特征，进而探讨两物种濒危的成因和机制，并针对性地提出了科学合理的保护对策和建议。
By means of polyaerylamide gel electrophoresis , peroxidase isozyme , esterase isozyme and a - amylase isozyme of dioscorea zingiberensis , which were gathered from different growing environment conditions , were analyzed . with the results of 3 kinds of isozyme analysis and the analysis of 15 populations morphology and climate , dioscorea zingiberensis were divided into 5 ecotypes . the main results were shown as follows : 1 本研究以来自我国秦岭山脉以南的甘肃、陕西、湖北、湖南、四川及云南各省的盾叶薯蓣为试验材料，通过对盾叶薯蓣的pox 、 est和a - amy3种酶的同工酶进行聚丙烯酰胺凝胶电泳分析，结合其形态性状和物候期等生物学特征，进行生态型的划分，所得结论如下： 1
