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 genetically.
OG关于E的解释是this statement provides an example of learned bird behavior, and so provides a little additional support for the conclusion, but not as much additional supports as does (B).
我想问的是文章不是关于build nest的嘛。E应该是无关的。为什么OG说是有一点支持呢？
自己顶一下~帮帮解释一下哇~~
E说一些鸟的歌曲方言是学来的，而不是遗传来的。从思路上支持了，鸟是有能力可以通过学来获得某些知识的（ｓｏｎｇｓ ｄｉａｌｅｃｔ／ construct ability）
但是ｄｉａｌｅｃｔ和ｃｏｎｓｔｒｕｃｔ是不相关的。所以ＯＧ说了provides a little additional support
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