female bats

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female bats

by ranell » Thu Aug 27, 2009 10:43 am
Millions of female bats rear their pups in Bracken Cave. Although the mothers all leave the cave nightly, on their return each mother is almost always swiftly reunited with her own pup. Since the bats' calls are their only means of finding one another, and a bat pup cannot distinguish the call of its mother from that of any other adult bat, it is clear that each mother bat can recognize the call of her pup.

The argument seeks to do which one of the following?
(A) derive a general conclusion about all members of a group from facts known about representative members of that group
(B) establish the validity of one explanation for a phenomenon by excluding alternative explanations
(C) support, by describing a suitable mechanism, the hypothesis that a certain phenomenon can occur
(D) conclude that members of two groups are likely to share a certain ability because of other characteristics they share
(E) demonstrate that a general rule applies in a particular case

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by rish » Thu Aug 27, 2009 11:24 am
IMO B

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by siddharth rastogi » Thu Aug 27, 2009 1:21 pm
B\C BOTH LOOKS GOOD

I WILL GO WITH C

OA PLEASE

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by kbharadwaj.1987 » Thu Aug 27, 2009 4:29 pm
IMO "C"

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by arorag » Thu Aug 27, 2009 6:10 pm
Will go with B The problem with C word "hypothesis"

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by mehravikas » Thu Aug 27, 2009 9:57 pm
IMO - E

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by siddharth rastogi » Fri Aug 28, 2009 12:07 am
OA?

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by bsandhyav » Fri Aug 28, 2009 1:13 am
B for me.....wots the OA??

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by acenikk » Fri Aug 28, 2009 1:34 am
I will go with E. What's OA ?

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by scoobydooby » Fri Aug 28, 2009 4:43 am
B seems a good fit, as one explanation of a phenomenon (that bat pups cannot recognize calls )is excluded to emphasize the other explantion (that bat moms recognize the calls of the pup)

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by riteshbindal » Fri Aug 28, 2009 6:20 pm
C IMO. OA plz.

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by iwill » Fri Aug 28, 2009 9:44 pm
IMO B.

Because ..." calls are their only means of finding one another, and a bat pup cannot distinguish the call of its mother from that of any other adult bat.. "

Thus, eliminating the alternate causes for the effect.

also, author says, " it is clear that ...." he is not ' supporting..' he is kind of 'concluding..'

OA please....

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IMO B

by enniguy » Fri Aug 28, 2009 10:17 pm
IMO B. OA?

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by gmatmachoman » Fri Aug 28, 2009 10:58 pm
Initially I thought D would fot.Bit it wont.It says the 2 grps can share one ability.But as per the argument,the pup bats cant recognise its mother based on calls.So D wont fit.

Then I looked in to B.Its seems quote convincing!!!

IMO B

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by ranell » Sun Aug 30, 2009 1:54 pm
OA is B