| View previous topic :: View next topic |
| Author |
Message |
nishant_1010
Just gettin' started!
Joined: 06 Jan 2007
Posts: 14
Thanks given: 0
Thanked 0 times in 0 posts
|
 Posted: Wed May 02, 2007 10:18 pm Post subject: 1000Cr-->Lsat 25-->SecIV-->Q22 |
 |
|
22. Dinosaur expert: Some paleontologists have claimed that birds are descendants of
a group of dinosaurs called dromeosaurs. They appeal to the fossil record, which indicates that dromeosaurs have characteristics more similar to birds than do most
dinosaurs. But there is a fatal flaw in their argument; the earliest bird fossils that
have been discovered date back tens of millions of years farther than the oldest
known dromeosaur fossils. Thus the paleontologists’ claim is false.
The expert’s argument depends on assuming which one of the following?
(A) Having similar characteristics is not a sign that types of animals are
evolutionarily related.
(B) Dromeosaurs and birds could have common ancestors.
(C) Knowledge of dromeosaur fossils and the earliest bird fossils is complete.
(D) Known fossils indicate the relative dates of origin of birds and dromeosaurs.
(E) Dromeosaurs are dissimilar to birds in many significant ways.
Ans D. I chose C why is C wrong and D correct |
|
| Back to top |
|
 |
|
|
jayhawk2001
Moderator
Joined: 28 Jan 2007
Posts: 789
Thanks given: 0
Thanked 11 times in 11 posts
Location: Silicon valley, California
|
| Posted: Wed May 02, 2007 10:40 pm Post subject: Re: 1000Cr-->Lsat 25-->SecIV-->Q22 |
|
|
| nishant_1010 wrote: | 22. Dinosaur expert: Some paleontologists have claimed that birds are descendants of
a group of dinosaurs called dromeosaurs. They appeal to the fossil record, which indicates that dromeosaurs have characteristics more similar to birds than do most
dinosaurs. But there is a fatal flaw in their argument; the earliest bird fossils that
have been discovered date back tens of millions of years farther than the oldest
known dromeosaur fossils. Thus the paleontologists’ claim is false.
The expert’s argument depends on assuming which one of the following?
(A) Having similar characteristics is not a sign that types of animals are
evolutionarily related.
(B) Dromeosaurs and birds could have common ancestors.
(C) Knowledge of dromeosaur fossils and the earliest bird fossils is complete.
(D) Known fossils indicate the relative dates of origin of birds and dromeosaurs.
(E) Dromeosaurs are dissimilar to birds in many significant ways.
Ans D. I chose C why is C wrong and D correct |
Someone argues that the expert's claim is incorrect -- his only source
for the argument is that the bird's fossils are much much older than
the dromeo's fossils.
Hence the assumption is that the fossils correctly indicate the dates
of origin. Hence D.
A - The expert doesn't comment on similarities. Rule this one out.
B - No mention of common ancestors. Incorrect
C - We don't need "complete" knowledge. We just need to know if
the dates on the fossils are indicative of the origins
D - correct
E - Out of scope |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum
|
|
"GMAT" and other GMAC™ trademarks are registered trademarks of the Graduate Management Admission Council™. The Graduate Management Admission Council™ does not endorse, nor is it affiliated in any way with the owner or any content on this website. The opinions expressed here are solely those of the author or those of the members of this website. Copyright © 2008 BTG Test Prep, LLC. Powered by phpBB © 2001, 2005 phpBB Group.
|
|
