标题: og cr 21求助 [打印本页] 作者: starlitcream 时间: 2013-1-9 23:45 标题: og cr 21求助 Male bowerbirds construct elaborately decorated nests, or bowers. Basing their judgment on the fact that different local populations of bowerbirds of the same species build bowers that exhibit different building and decorative styles, researchers have concluded that the bowerbirds' building styles are a culturally acquired, rather than a genetically transmitted, trait.
Which of the following, if true, would most strengthen the conclusion drawn by the researchers?
(A)There are more common characteristics than there are differences among the bower-building styles of the local bowerbird population that has been studied most extensively.
(B)Young male bowerbirds are inept at bower- building and apparently spend years watching their elders before becoming accomplished in the local bower style.
(C)The bowers of one species of bowerbird lack the towers and ornamentation characteristic of the bowers of most other species of bowerbird.
(D)Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently seldom have contact with one another.
(E)It is well known that the song dialects of some songbirds are learned rather than transmitted
正确是b我选的d 因为文中说了不同地方的鸟建筑风格不一样。所以d选项两地 Male bowerbirds建筑风格肯定不一样啊。所以可以加强。求拍砖
建筑风格作者: 啃玉米的兔子 时间: 2013-1-10 00:11
是要加强” the bowerbirds' building styles are a culturally acquired, rather than a genetically transmitted, trait.“这个结论， D选项我觉得反而有undermine之嫌（即说明building styles是genetically transmitted~因为D选项说local populations of the birds apparently seldom have contact with one another B选项"Young bird watch old bird building" support结论里”a culturally acquired“作者: starlitcream 时间: 2013-1-10 17:43
谢谢啦