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# Revision Project: Male bowerbirds construct elaborately decorated nest

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Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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27 Apr 2008, 16:43
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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 bowerbirdsâ€™ 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 bowerbuilding styles of the local bowerbird population that has been studied most extensively.
B. Young male bowerbirds are inept at bowerbuilding 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.
[Reveal] Spoiler: OA

Last edited by carcass on 26 Jan 2017, 03:52, edited 1 time in total.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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27 Apr 2008, 16:45
Straight B. If bowerbuilding is learnt by observing elders it has to be cultural.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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30 Aug 2009, 11:36
OA is B.

¿What's wrong with D?
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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01 Oct 2009, 10:35
D does not say anything about the styles of the local populations...
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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04 Oct 2009, 22:39
B, best support that it is acuired culturally.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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15 Apr 2011, 21:00
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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 bowerbirdsâ€™ 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 bowerbuilding styles of the local bowerbird population that has been studied most extensively.
B. Young male bowerbirds are inept at bowerbuilding 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.

Why not...
[Reveal] Spoiler:

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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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15 Apr 2011, 23:46
D. Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently seldom have contact with one another.

D does not disprove the fact that the building style could still be genetically transmitted among species.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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16 Apr 2011, 00:08
It's truly (B)
I saw few other questions with the same line of reasoning.
But why we can't use (C)? I feel it's incorrect, but can't explain with words)
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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16 Apr 2011, 01:11
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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 bowerbirdsâ€™ 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?

The conclusion is building styles are culturally acquired and are not genetically transmitted.

C. The bowers of one species of bowerbird lack the towers and ornamentation characteristic of the bowers of most other species of bowerbird.

C proves that the building styles are different among different species, but does it prove that the building styles are not genetically transmitted among same species?. I think you may be getting confused by different species and same species. It is enough to consider the same species, since that is what the author is primarily talking about.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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16 Apr 2011, 01:56
Yes, i'm getting it.
Thanks!
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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27 Apr 2011, 07:31
'Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently seldom have contact with one another.'

they may still have very similar style of making nests , as they are genetically same species. so D does not in anyway strengthen the argument.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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05 Dec 2012, 06:39
I also get the right answer . however I have a question.

normally we prethink an assumption then find a strengthener in the answer choices. This strengthener is along the line with the prethought assumption.

how to apply that process in this question. how to prethink an assumption and find the correct answer for this question. pls, explain.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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05 Dec 2012, 08:24
Hi Thang,

Having also looked at the answer, so it makes the question easier. The assumption that has to be made is something that would undermine something being 'genetic' - so something genetic is done automatically. Cultural you have to observe/be taught so something like that will be right.

That works here with B

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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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16 Jun 2013, 04:38
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B.

Young Male bowerbirds are 'inept' at bowerbuilding.....and learn from their elders.

Thus, this skill is not genetic.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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17 Jun 2013, 17:53
metallicafan wrote:
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 bowerbirdsâ€™ 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 bowerbuilding styles of the local bowerbird population that has been studied most extensively.
B. Young male bowerbirds are inept at bowerbuilding 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.

Why not...
[Reveal] Spoiler:

This is one of those questions that uses definition of culture. I mean how does we "human beings" learn about our culture. It is something we learn from our parents. Stupidly, i marked A but on thinking a bit, i realized B is the more appropriate answer.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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27 Apr 2014, 10:36
Can someone please explain why A is incorrect?

If there are similarities within a region, doesn't that imply that culture has influenced the design style?
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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02 Dec 2014, 08:04
russ9 wrote:
Can someone please explain why A is incorrect?

If there are similarities within a region, doesn't that imply that culture has influenced the design style?

Its not about the similarities within a region, you have to pick the answer , that clearly shows that the buildingstyle is culturally aquired.

If buildings in a region look like each other, it still doesn't say anything about the reason WHY they look like each other.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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03 Feb 2015, 07:15
Expert's post
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GMAT Club Revision Project - CR Q3

Please post a detailed explanation and answer to this question to get a chance to get Kudos and your explanation posted on the GMAT Club Revision PDF

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 bowerbuilding styles of the local bowerbird population that has been studied most extensively.

B. Young male bowerbirds are inept at bowerbuilding 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.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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03 Feb 2015, 13:46
C look like the correct one.

The conclusion is that the trait to build distinctive nests is cultural and not genetic. Option C clearly mentions how the young look at the elders and learn nest-building. This is a cultural reference and hence C sounds like the most apt option.
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Re: Revision Project: Male bowerbirds construct elaborately decorated nest [#permalink]

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03 Feb 2015, 21:23
my answe, good contention between A and B. Probably the answer is B.

I guess this is question from OG.

souvik101990 wrote:

GMAT Club Revision Project - CR Q3

Please post a detailed explanation and answer to this question to get a chance to get Kudos and your explanation posted on the GMAT Club Revision PDF

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 bowerbuilding styles of the local bowerbird population that has been studied most extensively.

B. Young male bowerbirds are inept at bowerbuilding 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.

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Re: Revision Project: Male bowerbirds construct elaborately decorated nest   [#permalink] 03 Feb 2015, 21:23

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