说明前面应该会讲述一个完整的物种形成和殖民地化的过程。
【托福top42阅读第1篇Geographic Isolation Of Species题目解析】小站托福备考平台为广大托福考生提供全套托福TPO42阅读在线模考练习测评,托福阅读评分标准,托福阅读名师辅导,托福阅读考点答题等技巧解析。小站教育,助力中国学生绽放出国留学梦想。
【托福top42阅读第1篇Geographic Isolation Of Species题目解析】小站托福备考平台为广大托福考生提供全套托福TPO42阅读在线模考练习测评,托福阅读评分标准,托福阅读名师辅导,托福阅读考点答题等技巧解析。小站教育,助力中国学生绽放出国留学梦想。
托福新托福 42 - Geographic Isolation of Species 题目 收藏 2.How is paragraph 2 related to paragraph 1? A.Paragraph 2 points out a number of ways in which the phenomenon of geographic isolation mentioned in paragraph 1 can occur B.Paragraph 2 identifies discoveries that led to the conclusion ...
所属专辑:硬啃之托福阅读 音频列表 1 TPO 41-3 trade and early state formation 317 2018-04 2 TPO 42-1 geographic isolation of species 314 2018-04 3 TPO 42-2 Explaining Dinosaur Extinction 289 2019-02 4 TPO 42-3 Callisto and Ganymede ...
TPO42-Passage1-Geographic Isolation of Species 2017-10-09 14:00:0100:11 151 所属专辑:边词边题单词书音频 喜欢下载分享 声音简介 此音频需要配合《托福边词边题》使用,现京东、当当网、亚马逊有售。边词边题将托福单词按照TPO阅读和听力顺序拆分成学习单元,用户可根据需要选择指定TPO的阅读或听力文章中的单词...
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Geographic Isolation of SpeciesBiologist Ernst Mayr defined a species as "an actually or potentially interbreeding population that does not interbreed with other such populations when there is opportunity to do so. A key event in the origin of many species is the separation of a population with ...
托福托福 42 - Geographic Isolation of Species 题目 收藏 4.How is paragraph 2 related to paragraph 1? A.Paragraph 2 points out a number of ways in which the phenomenon of geographic isolation mentioned in paragraph 1 can occur B.Paragraph 2 identifies discoveries that led to the conclusion pre...
Geographic isolation creates opportunities for new species to develop, but it does not necessarily lead to new species because speciation occurs only when the gene pool undergoes enough changes to establish reproductive barriers between the isolated population and its parent population. The likelihood of...