1. Forces that can disturb this natural Balance are selection, mutation, gene flow, and natural selection. Certain gene-controlled traits are selected for or against by the partners involved. 能干扰这种自然平衡的外界因素有选择、突变、基因流动以及自然选择。某些受基因控制的性状为与之交配的异性个体所选择或不选择。
2. sib selection The selection of breeders in an artificial selection program based on the phenotypic value of their sibs. 近亲选择基于它们近亲的表现型价值，在一个人选计画中的繁殖种的选择。
3. Make a selection (Right-click and choose "Make selection") from the working path (0px feather), copy and paste the selection onto our document. 制作选区（点击右键-建立选区），羽化半径为0像素，复制并粘贴到文件。
4. First of all, this selection from the selection of corrosion-resistant chemical pump types and forms of beginning, then what does the principle of pump selection? 这种选择首先得从选择耐腐蚀化工泵的种类和形式开始，那么以什么原则来选泵呢？
5. sib selection The selection of breeders in an artificial selection program based on the phenotypic value of their sibs. 近亲选择基于它们近亲的表现型价值，在一个人选计画中的繁殖种的选择。
网络释义
Review of Selection Criteria and Marking Scheme for Green Minibus Operators Selection Exercises 遴选绿色专线小巴营办商的准则及计分制度检讨;
