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Some species of Arctic birds are threatened by recent sharp

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Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 15 Apr 2006, 07:46
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Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

(A) Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
(B) It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
(C) The number of snow geese taken by hunters each year has grown every year for several years.
(D) As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
(E) In the snow goose’s winter habitats, the goose faces no significant natural predation.
[Reveal] Spoiler: OA

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 15 Apr 2006, 10:01
Arguement:

Since the population of Snow geese has increased, dropping the restriction on the limit of % of snow geese allowed to hunt will reduce the population.

Assumption - Since the restriction is imposed only in the southern region, dropping the restriction in southern region will affect the population of snow geese.

Choice D negates this since the geese no longer spend their winter only in southern region.

- Vipin

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 15 Apr 2006, 10:28
antiant wrote:
Some species of Arctic birds are threatened by recent sharp increase in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduces the population by five percent, according to official estimates. Clearly, dropping this restiction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

a) Hunting limits for snow geese were imposed many years ago in respose to a sharp decline in the population of snow geese.

b) It has been many years since the restriction lead to the hunting season for snow geese being closed earlier than the scheduled date.

c) The number of snow geese taken by hunters each year has grown every year for several years.

d) As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.

e) In the snow goose's winter habitats, the goose faces no significant natural predation.


Argument.
Increasing population of snow gees causing threatining to Some species of Arctic birds.
Current limit for hunting is 5%
Conclusion:- drop the restriction to recover the species.

To undermine we have some argument which tells that "droping the restriction" will not cause to recover the species. i.e If hunter can hunt more snow gees that is good to recover the species.

D is correct.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 16 Oct 2006, 00:52
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.



Which of the following, if true, most seriously undermines the argument?




A.Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.

B.It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.

C.The number of snow geese taken by hunters each year has grown every year for several years.

D.As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.

E.In the snow goose’s winter habitats, the goose faces no significant natural predation.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 16 Oct 2006, 09:07
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B. Because it appears that no one is interested in killing the geese, so , lifting restrictions is not going to change the status quo.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 22 Oct 2006, 11:19
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None of the answer choices except C to some extent makes sense to me.

I believe in C because even when geese is being hunted more and more yet the threat to arctic bird seems to remain constant.. this undermines the argument that killing/removing more geese will reduce the threat to arctic birds

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 23 Oct 2006, 05:17
the OA?
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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 23 Oct 2006, 05:25
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Clear B

A.Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
- supports the argument

B.It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
- hunters normally do not hunt more than 5% of the population. So, removing the restriction is not going to increase the number of snow geese hunted during winter. WEAKENS the argument.

C.The number of snow geese taken by hunters each year has grown every year for several years.
- we already know that population is increasing, so number of birds constituting 5% will also have increased. Does not add anything.

D.As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
- irrelevant.

E.In the snow goose’s winter habitats, the goose faces no significant natural predation.
- irrelevant.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 23 Oct 2006, 10:48
Yes this one doesn't seem to be very straight forward at all ...

jerrywu wrote:
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Fact: Snow geese has sharp increase in population and thus threaten the other birds.
Fact: Hunting for snow geese will be over if population is reduced by 5%.
Argument: Dropping the restricition will kill more snow geese thus lessen the threat to other birds.

Ask for weaken.

Quote:
A.Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.

strenthen.
Quote:
B.It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.

Meaning if we drop the restriction more geese will be killed. Strengthen.
Quote:
C.The number of snow geese taken by hunters each year has grown every year for several years.

Meaning they'll kill even more this year, with the drop of the restriction. Not weaken.
Quote:
D.As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.

This might be it. The restriction is only for the southen region. If the geese are somewhere else then dropping the restriction ma not help.
Quote:
E.In the snow goose’s winter habitats, the goose faces no significant natural predation.

That's why we need to drop the restriction and hunt more geese. Strength.

The only one that sounds plausible is D for me.
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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 29 Oct 2006, 13:05
Am going with B, what is the OA?

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 29 Oct 2006, 23:42
I will go for D...OA please

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 01 Nov 2006, 02:33
Reading again, D is clearly the answer...
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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 01 Nov 2006, 06:18
isn't time for the OA already?

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 01 Nov 2006, 06:55
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HongHu wrote:
Yes this one doesn't seem to be very straight forward at all ...

jerrywu wrote:
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Fact: Snow geese has sharp increase in population and thus threaten the other birds.
Fact: Hunting for snow geese will be over if population is reduced by 5%.
Argument: Dropping the restricition will kill more snow geese thus lessen the threat to other birds.

Ask for weaken.

Quote:
A.Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.

strenthen.
Quote:
B.It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.

Meaning if we drop the restriction more geese will be killed. Strengthen.
Quote:
C.The number of snow geese taken by hunters each year has grown every year for several years.

Meaning they'll kill even more this year, with the drop of the restriction. Not weaken.
Quote:
D.As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.

This might be it. The restriction is only for the southen region. If the geese are somewhere else then dropping the restriction ma not help.
Quote:
E.In the snow goose’s winter habitats, the goose faces no significant natural predation.

That's why we need to drop the restriction and hunt more geese. Strength.

The only one that sounds plausible is D for me.


Excellent explanation Hong Hu. You deserve every bit of the cracking you did at the GMAT. Thanks!

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 02 Nov 2006, 22:25
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

(A) Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
(B) It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
(C) The number of snow geese taken by hunters each year has grown every year for several years.
(D) As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
(E) In the snow goose’s winter habitats, the goose faces no significant natural predation.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 03 Nov 2006, 01:20
just posted days ago. i for D.
any oA for this question?

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 06 Jul 2007, 19:51
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

A. Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
B. It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
C. The number of snow geese taken by hunters each year has grown every year for several years.
D. As their population has increased, snow geese have re-colonized wintering grounds that they had not used for several seasons.
E. In the snow goose’s winter habitats, the goose faces no significant natural predation.


please explain with details

多谢

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 06 Jul 2007, 23:45
stevegt wrote:
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

A. Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
B. It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
C. The number of snow geese taken by hunters each year has grown every year for several years.
D. As their population has increased, snow geese have re-colonized wintering grounds that they had not used for several seasons.
E. In the snow goose’s winter habitats, the goose faces no significant natural predation.


please explain with details

多谢



choose D.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 07 Jul 2007, 03:38
go for D

experience has shown that if goose population increase then they recolonazie wintering grounds they have not used.
we can conclude that if hunting cease then gooses will spread and endanger other species.

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Re: Some species of Arctic birds are threatened by recent sharp [#permalink]

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New post 07 Jul 2007, 07:10
D it is.
The argument says that allowing hunters to kill more geese would help the other species but D says that the population of geese has spread into new areas where hunting is less probable.

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Re: Some species of Arctic birds are threatened by recent sharp   [#permalink] 07 Jul 2007, 07:10

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