OG-66

IceOnMe

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

岁寒三宝

同问

ring_cheng

here is my two cents:

(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 —>不同群族的鸟建不同的房子，而同一族群(population)的鸟的建筑既有不同点又有相似点，说明有些可能是因为后天的学习，而有些可能来自于遗传

(D) Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently seldom have contact with one another. —>鸟群间不相往来说明同一群族的鸟不会向其它群族的鸟学习，但并不影响同一鸟群内部的相互学习或者遗传

欢迎讨论！

无路可退

same question. my answer is E.

ring_cheng

(E) It is well known that the song dialects of some songbirds are learned rather than transmitted genetically.
E只能说明鸟类有后天学习的能力，但结论是问鸟类“盖房子”的能力从何而来，实属无关

无路可退

"acquire"有通过后天的学习获得。现在明白了。

cccccc0

up

KATIEUS

THANKS ring_cheng