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.
请问如何理解这句OG的解释:
That differences within building styles are outnumbered by similarities
(choice A) and that local populations have little contact (choice D) are both equally consistent with building-style differences being culturally acquired or genetically transmitted.
发现自己读不懂它作者: freesimens 时间: 2005-6-28 06:27
楼主厉害，谢了！！！
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