Find all School-related info fast with the new School-Specific MBA Forum

It is currently 23 Jul 2014, 07:00

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Some species of dolphins find their prey by echolocation;

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
GMAT Club Legend
GMAT Club Legend
avatar
Joined: 15 Dec 2003
Posts: 4318
Followers: 17

Kudos [?]: 147 [0], given: 0

GMAT Tests User
Some species of dolphins find their prey by echolocation; [#permalink] New post 25 Sep 2004, 19:16
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Some species of dolphins find their prey by echolocation; they emit clicking sounds and listen for echoes returning from distant objects in the water. Marine biologists have speculated that those same clicking sounds might have a second function: particularly loud clicks might be used by the dolphins to stun their prey at close range through sensory overload.

Which of the following, if discovered to be true, would cast the most serious doubt on the correctness of the speculation described above?
A) dolphins that use echolocation to located distant prey also emit frequent clicks at intermediate distances as they close in on their prey
B) the usefulness of echolocation as a means of locating prey depends on the clicking sounds being of a type that the prey is incapable of perceiving, regardless of volume
C) if dolphins stun their prey, the effect is bound to be so temporary that stunning from far away, even if possible, would be ineffective
D) echolocation appears to give dolphins that use it information about the richness of a source of food as well as about its direction
E) the more distant a dolphin's prey, the louder the echolocation clicks must be if they are to reveal the prey's presence to the hunting dolphin

_________________

Best Regards,

Paul

Director
Director
User avatar
Joined: 16 Jun 2004
Posts: 893
Followers: 1

Kudos [?]: 9 [0], given: 0

GMAT Tests User
 [#permalink] New post 25 Sep 2004, 20:57
B for me too. If the sounds from Dolphins is primarily for its search of the prey without the prey knowing about it (as the prey cant hear it as per B) -the question of it(prey) getting stunned will be a 'wrong' speculation (especially if the function of 'loud' clicks is to stun the prey).

B also makes one believe that in the event the prey does not hear the sound from the Dolphin, the prey can be stunned by the Dolphin not necessarily by a 'loud' click.
SVP
SVP
User avatar
Joined: 30 Oct 2003
Posts: 1798
Location: NewJersey USA
Followers: 3

Kudos [?]: 29 [0], given: 0

GMAT Tests User
 [#permalink] New post 26 Sep 2004, 05:58
Hi paul ?

Where did u get this Q. is it from paper test ? I remember doing this sometime back.

The answer is definitely (B)
GMAT Club Legend
GMAT Club Legend
avatar
Joined: 15 Dec 2003
Posts: 4318
Followers: 17

Kudos [?]: 147 [0], given: 0

GMAT Tests User
 [#permalink] New post 26 Sep 2004, 06:18
Yes, this is from paper test and OA is B. Good job all :P

_________________

Best Regards,

Paul

  [#permalink] 26 Sep 2004, 06:18
    Similar topics Author Replies Last post
Similar
Topics:
2 Experts publish their posts in the topic Some species of dolphins find their prey by echolocation pavan2185 3 18 Aug 2013, 04:31
Some species of dolphins find their prey by echolocation; amansingla4 7 25 Jun 2006, 00:55
Some species of dolphins find their prey by echolocation: cindyn 3 29 Apr 2006, 10:48
The 32 species that make up the dolphin family are closely chunjuwu 0 01 Jun 2005, 04:38
15 Experts publish their posts in the topic The 32 species that make up the dolphin family are closely marine 176 26 Aug 2004, 02:42
Display posts from previous: Sort by

Some species of dolphins find their prey by echolocation;

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

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

Powered by phpBB © phpBB Group and phpBB SEO

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®.