GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 16 Aug 2018, 14:48

Close

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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Boreal Owls range over a much larger area than do [Boldface]

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

EMPOWERgmat Instructor
User avatar
B
Joined: 23 Feb 2015
Posts: 301
Boreal Owls range over a much larger area than do [Boldface]  [#permalink]

Show Tags

New post 20 Jul 2018, 15:31
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

76% (01:41) correct 24% (01:55) wrong based on 131 sessions

HideShow timer Statistics

Boreal owls range over a much larger area than do other owls of similar size. Scientists have hypothesized that it is scarcity of prey that leads the owls to range so widely. This hypothesis would be hard to confirm directly, since it is not possible to produce a sufficiently accurate count of the populations of small mammals inhabiting the forests where boreal owls live. Careful study of owl behavior has, however, shown that boreal owls do range over larger areas when they live in regions where food of the sort eaten by small mammals is comparatively sparse. This indicates that the scientists’ hypothesis is not sheer speculation.

In the argument given, the two boldfaced portions play which of the following roles?

A. The first presents an explanatory hypothesis; the second states the main conclusion of the argument.

B. The first presents an explanatory hypothesis; the second presents evidence tending to support this hypothesis.

C. The first presents an explanatory hypothesis; the second presents evidence to support an alternative explanation.

D. The first describes a position that the argument opposes; the second presents evidence to undermine the support for the position being opposed.

E. The first describes a position that the argument opposes; the second states the main conclusion of the argument.


OG 2019 Question
ID CR02146

_________________

"Students study. GMAT assassins train."
Image

Image

★★★★★ GMAT Club Verified Reviews for EMPOWERgmat & Special Discount


GMAT Club Verbal Advantage EMPOWERgmat Critical Reasoning Question Pack

EMPOWERgmat Instructor
User avatar
B
Joined: 23 Feb 2015
Posts: 301
Re: Boreal Owls range over a much larger area than do [Boldface]  [#permalink]

Show Tags

New post 24 Jul 2018, 16:53
1
BID (Boil It Down): Scarce owl prey -> Wider ranging

The Goal: We need to identify the purpose of each statement, and the relationship between the two.

    Statement 1: Scientists’ hypothesis (scarcity of prey that leads the owls to range so widely)
    Statement 2: Wider ranging owls in areas where food that owl’s prey eats is scarcer (lends support to the idea that scarcer prey causes boreal owls to range over a wider area.


The relationship between the two: The second provides support for the first, which leads the author to state that the hypoth is plausible.

Formal Recap of Argument
Conclusion: This argument has two conclusions. The author’s conclusion is that the scientists’ hypothesis is not sheer speculation – it does have support. The scientists’ conclusion/hypothesis is that boreal owls range over unusually large areas because of a scarcity of prey.

Evidence: Boreal owls range over unusually large areas when they live where food eaten by small mammals is relatively sparse. Since this evidence supports the scientists, it also supports the author of the argument.

Assumption: The scarcity of small mammal food indicates a scarcity of small mammals. It should be noted, however, that the author does not make a definite claim; it merely says that the scientists are not merely speculating.

Attack the Options
As always, let’s check out the stance of the options to see which ones botch it. Notice that D and E botch the first statement. The argument DEFINITELY does not oppose the hypothesis. In fact the author makes the case that the hypothesis is pretty reasonable.

Between A, B, and C, let’s see what’s going on with the back half of the options:

A: the second statement is not the conclusion. It’s proof that the author finds promising. Chuck it.

Now, between B, and C there’s more of a nuance, but C references some sort of alternative hypothesis. Nowhere in this prompt do we see any indication of an alternative hypothesis. Drop option C.

Option B is correct. The first statement does provide a hypothesis; it hypothesizes an explanation for the wide range of boreal owls: scarcity of prey. The second portion, while not definitive, does provide some support to the hypothesis, and the author acknowledges that this proof adds credence to the hypothesis. Since the owls range over larger areas when the food of small mammals is scarce, this might well be because the small mammals eaten by the owls are scarce.
_________________

"Students study. GMAT assassins train."
Image

Image

★★★★★ GMAT Club Verified Reviews for EMPOWERgmat & Special Discount


GMAT Club Verbal Advantage EMPOWERgmat Critical Reasoning Question Pack

Manager
Manager
avatar
S
Joined: 19 Nov 2017
Posts: 144
Location: India
Schools: ISB
GMAT 1: 670 Q49 V32
GPA: 4
Re: Boreal Owls range over a much larger area than do [Boldface]  [#permalink]

Show Tags

New post 25 Jul 2018, 01:07
BF 1 presents a hypothesis.
BF 2 validates the hypothesis.
Therefore, the scientists’ hypothesis is not sheer speculation.

D and E can easily be eliminated - The argument seeks to provide evidence to validate BF 1.
C is out as well (BF 2 supports the hypothesis)
BF 2 is not a conclusion so A is also out

Hence, B is the best answer choice.
_________________

Regards,

Vaibhav



Sky is the limit. 800 is the limit.

~GMAC

Director
Director
User avatar
D
Joined: 23 Sep 2015
Posts: 789
GMAT ToolKit User Reviews Badge
Re: Boreal Owls range over a much larger area than do [Boldface]  [#permalink]

Show Tags

New post 28 Jul 2018, 09:37
Boreal owls range over a much larger area than do other owls of similar size. --- issue in hand/ hypothesis/ a conclusion

Scientists have hypothesized that it is scarcity of prey that leads the owls to range so widely. --- evidence for above hypothesis / not fact, hypothesis

This hypothesis would be hard to confirm directly, since it is not possible to produce a sufficiently accurate count of the populations of small mammals inhabiting the forests where boreal owls live. --- objection in line

Careful study of owl behavior has, however, shown that boreal owls do range over larger areas when they live in regions where food of the sort eaten by small mammals is comparatively sparse. --- something in support of above hypothesis

This indicates that the scientists’ hypothesis is not sheer speculation. --- main conclusion

Connection of two BF with main conclusion:
BF1- Scientists hypothesis on issue in hand/
BF2- A support given for main conclusion

B. The first presents an explanatory hypothesis; the second presents evidence tending to support this hypothesis. --- on the same lines as we thought.
_________________

Thanks!
Do give some kudos.

Simple strategy:
“Once you’ve eliminated the impossible, whatever remains, however improbable, must be the truth.”

Best Gmat Resource:
GmatPrep CR|GmatPrep SC|GmatPrep RC

Want to improve your Score:
GMAT Ninja YouTube! Series 1| GMAT Ninja YouTube! Series 2

Re: Boreal Owls range over a much larger area than do [Boldface] &nbs [#permalink] 28 Jul 2018, 09:37
Display posts from previous: Sort by

Boreal Owls range over a much larger area than do [Boldface]

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.