by: BasicMount
20 mins
by: BasicMount
21 mins
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Difficulty:
85%
(hard)
Question Stats:
53% (01:58) correct
47%
(01:58)
wrong
based on 429
sessions
History
Date
Time
Result
Not Attempted Yet
Triumba birds reside in the polar regions and need to migrate to warmer areas in winters since winters in the polar regions are not conducive to the survival of the birds. In recent years, because of some unanticipated genetic changes, the flying capability of the birds has been declining and is expected to continue do so in the future.
Which of the following statements is best supported by the passage above?
(A) At least one species that resides in the polar regions cannot survive in the summer by migrating to other regions.
(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction.
(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability.
(D) Unless Triumba birds develop an ability to live in the polar regions during winter, they will be extinct in some time.
(E) The flying capability of Triumba birds is worse than that of other polar region birds that do not migrate to warmer areas in the winter.
_________________
Which of the following statements is best supported by the passage above?
(A) At least one species that resides in the polar regions cannot survive in the summer by migrating to other regions.
(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction.
(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability.
(D) Unless Triumba birds develop an ability to live in the polar regions during winter, they will be extinct in some time.
(E) The flying capability of Triumba birds is worse than that of other polar region birds that do not migrate to warmer areas in the winter.
_________________
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Bunuel
Basically, the passage is talking about these birds called Triumba birds that live in the polar regions but need to migrate to warmer areas in the winter because it's too cold for them to survive up there. But lately, these birds have been having some genetic changes that are making it harder for them to fly, and it's only going to get worse in the future.
So the question is asking which statement is supported by this information. And the one that makes the most sense is B, which basically says that if these birds don't figure out a way to deal with these genetic changes, they're gonna die out.
rosalynd
Hi Rosalynd!
Is it not too far to assume that extinction will occur? I was thinking that C is a more probable answer ?
Ps1810
(B) If Triumba birds don’t develop measures to counter adversarial genetic changes, they face a likelihood of extinction. (B talks in the likelihood, leaving the chance of extinction not happening also)
(C) Over the past few years, some of the Triumba birds would not have flown back to the polar regions because of limited flying ability. (C talks in certainty which we can't infer from the argument)
Hi Bunuel
Could you please shed some light for a better understanding of why it is B, and not D?
Because they both seem too close to each other. I was validating option D for the birds won't be able to fly to warm places as their ability to fly will highly likely diminish over time. So their way out will be no more to fly to warm places and to develop habitats to live in polar regions during winter. Otherwise, extinction will take place.
I know option D doesn't vividly talk about genetic changes. However, option B seemed too timid as it just accused the genetic changes for the birds' extinction without proper reasoning. In contrast, the reasoning seemed more explanatory in option D where it explained how the inability to fly can lead to extinction.
Am I missing something here?
Could you please shed some light for a better understanding of why it is B, and not D?
Because they both seem too close to each other. I was validating option D for the birds won't be able to fly to warm places as their ability to fly will highly likely diminish over time. So their way out will be no more to fly to warm places and to develop habitats to live in polar regions during winter. Otherwise, extinction will take place.
I know option D doesn't vividly talk about genetic changes. However, option B seemed too timid as it just accused the genetic changes for the birds' extinction without proper reasoning. In contrast, the reasoning seemed more explanatory in option D where it explained how the inability to fly can lead to extinction.
Am I missing something here?
Posts: 23
rosalynd
So whats the difference between B and D?
Until you receive an expert reply, here is something similar to what I believe you will hear.
So we know:
1. These birds need to get out the polar regions in the winter.
2. Due to genetic changes, their flying capabilty is declining
3. This decline will continue further.
what we do not know:
1. That this decline has already made it impossible for any of the birds to complete their journey back and forth. (A and C are out)
2. What ways there are for them to overcome this genetic liabilty.
Had B not been there, D would've been the clearer answer. But when B comes in, it fits argument better. According to the argument, the birds got to migrate. If not due to their genetic change, they could die out. Which his what B says.
So we know:
1. These birds need to get out the polar regions in the winter.
2. Due to genetic changes, their flying capabilty is declining
3. This decline will continue further.
what we do not know:
1. That this decline has already made it impossible for any of the birds to complete their journey back and forth. (A and C are out)
2. What ways there are for them to overcome this genetic liabilty.
Had B not been there, D would've been the clearer answer. But when B comes in, it fits argument better. According to the argument, the birds got to migrate. If not due to their genetic change, they could die out. Which his what B says.
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