Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
Apr 2912:30 AM EDT
-01:30 AM EDT
Learn how Kamakshi achieved a GMAT 675 with an impressive 96th %ile in Data Insights. Discover the unique methods and exam strategies that helped her excel in DI along with other sections for a balanced and high score.
Apr 3001:30 AM EDT
-02:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
May 0306:30 AM PDT
-08:30 AM PDT
Verbal trouble on GMAT? Fix it NOW! Join Sunita Singhvi for a focused webinar on actionable strategies to boost your Verbal score and take your performance to the next level.
30 Mar 2020, 08:30
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
67% (02:13) correct
33%
(02:22)
wrong
based on 511
sessions
History
Date
Time
Result
Not Attempted Yet
The authors of a recent article examined warnings of an impending wave of extinctions of animal species within the next 100 years. These authors say that no evidence exists to support the idea that the rate of extinction of animal species is now accelerating. They are wrong, however. Consider only the data on fishes: 40 species and subspecies of North American fishes have vanished in the twentieth century, 13 between 1900 and 1950, and 27 since 1950.
The answer to which one of the following questions would contribute most to an evaluation of the argument?
(A) Were the fish species and subspecies that became extinct unrepresentative of animal species in general with regard to their pattern of extinction?
(B) How numerous were the populations in 1950 of the species and subspecies of North American fishes that have become extinct since 1950?
(C) Did any of the species or subspecies of North American fishes that became extinct in the twentieth century originate in regions outside of North America?
(D) What proportion of North American fish species and subspecies whose populations were endangered in 1950 are now thriving?
(E) Were any of the species or subspecies of North American fishes that became extinct in the twentieth century commercially important?
The answer to which one of the following questions would contribute most to an evaluation of the argument?
(A) Were the fish species and subspecies that became extinct unrepresentative of animal species in general with regard to their pattern of extinction?
(B) How numerous were the populations in 1950 of the species and subspecies of North American fishes that have become extinct since 1950?
(C) Did any of the species or subspecies of North American fishes that became extinct in the twentieth century originate in regions outside of North America?
(D) What proportion of North American fish species and subspecies whose populations were endangered in 1950 are now thriving?
(E) Were any of the species or subspecies of North American fishes that became extinct in the twentieth century commercially important?
prakhar992
GMAT 1: 710 Q50 V35
Posts: 78
03 Apr 2020, 09:58
Kudos
Bookmarks
Bunuel
There are in total four assumptions we need to look for. Here are they follows:
1. Is it correct to extrapolate the extinction of acceleration of animal species from a the extinction of particular species?
2. Is any one species getting extinct represent the correct representation for the entire animal group? This represent answer choice "A".
3. If one species if getting extinct, is it necessary the entire animal species is getting extinct?
04 Apr 2020, 15:30
Kudos
Bookmarks
Quote:
Conclusion: They (the authors) are wrong.
Premise: Consider only the data on fishes: 40 species and subspecies of North American fishes have vanished in the twentieth century, 13 between 1900 and 1950, and 27 since 1950.
The argument above concludes that the authors of a recent article that examined warnings of an impending wave of extinctions of animal species within the next 100 years and that concluded that no evidence exists to support the idea that the rate of extinction of animal species is now accelerating are wrong. Why does he/she think so? He/she based his/her conclusion on the fact that 40 fish species and subspecies of North American fishes have vanished within the twentieth century with a further breakdown of the pattern of extinction over half a century. Our task is to determine which of the answer choices would most contribute to an evaluation of the argument above.
An assumption of the argument above is that the trend of extinction of fishes in North America represents the trend of extinction of animal species in general. If this is not assumed, then the argument above will crumble. So we need to determine whether truly the trend quoted as a premise for the argument to conclude that authors are wrong represents the general trend worldwide not only for fish species but also animal species in general.
Quote:
Correct per the reasoning above.
Quote:
Per the reasoning above, this is incorrect since it doesn't provide us with any information to enable the establishment of a correlation between the extinction of fish species in North America and the animal species in the world as a whole.
Quote:
Who cares if any of the subspecies of the North American fishes that became extinct in the twentieth-century originate in regions outside of North America? We just need a correlation between the data on the extinction of fish species of North America and the animal species in the world. C is thus incorrect because it doesn't provide this link.
Quote:
Out of scope and definitely irrelevant as the argument is about extinct species and not endangered species.
Quote:
The commercial importance of the extinct species and subspecies of North American fishes in the twentieth-century is out of scope and thus irrelevant.
