og cr 21求助

starlitcream

        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

啃玉米的兔子

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“

starlitcream

谢谢啦