On Pacific islands, a newly arrived gecko species, the house gecko, is displacing the previously established mourning gecko in urban areas, but populations of the two species are more stable in rural areas far from human settlement. The house gecko does not attack the mourning gecko, but in areas where insects congregate it prevents the mourning gecko from feeding on them. Which of the following contributes most to an explanation of the difference between gecko populations in urban and rural areas? (A) In urban areas, geckos are valued because they eat so many insects. (B) Geckos defend territories against other members of the same species. (C) House geckos that arrive on islands are carried there in boats and planes. (D) In places where there are lighted buildings, insects tend to gather around the light. (E) Mourning geckos are all females and reproduce asexually, but house gecko reproduce sexually. 答案D 最後问gecko在城市和乡下的差异 请问跟灯光有什麽关系 其他答案更离谱 但这个答案我也想不出来 谢 -- 日情蒐点名--郭勇志︰会怕就好 〔记者罗惠龄／台中报导〕今年日本出版的新球季日本职棒球员名监，在分析亚锦赛议 题中，将郭勇志列为台湾队注目投手之一，郭勇志不好意思地表示，大概是去年成绩不错 ，被注意到了。将郭勇志列入要特别注意的球员，是因为他去年获得联盟救援王，控球 、直球速度及压制能力都不错，有机会获国家队青睐。看到自己被日本人注意到，郭勇 志意外之余也表示︰「会怕就好。」 --

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