|
Author |
Message |
|
TAGS:
|
|
|
Director
Joined: 29 Jul 2006
Posts: 877
Followers: 3
Kudos [?]:
10
[0], given: 0
|
Paleontologists have discovered fossils of centipedes that [#permalink]
 27 Mar 2007, 10:43
Question Stats:
0% (00:00) correct
 0% (00:00) wrong based on 0 sessions
Paleontologists have discovered fossils of centipedes that are 414 million years old. These fossils are at least 20 million years older than the earliest land-dwelling animals previously identified. The paleontologists are confident that these centipedes lived on land, even though the fossilized centipedes were discovered in rock that also contained fossilized remains of animals known to be water-dwelling.
The paleontologists’ view would be LEAST supported by the truth of which one of the following?
(A) The legs of the fossilized centipedes were particularly suited to being a means of locomotion on land.
(B) All of the centipedes that had previously been discovered were land dwellers.
(C) The rock in which the fossilized centipedes were found was formed from mud flats that were occasionally covered by river water.
(D) Fossils of the earliest land-dwelling animals that had previously been identified were found in rock that did not contain fossilized remains of water-dwelling animals.
(E) Fossils of spiders with respiratory systems adapted only to breathing air were found in the same rock as the centipede fossils.
Please give reasons for ur choices...
|
|
|
|
|
|
|
VP
Joined: 06 Feb 2007
Posts: 1024
Followers: 17
Kudos [?]:
77
[0], given: 0
|
The paleontologists’ view would be LEAST supported by the truth of which one of the following?
(A) The legs of the fossilized centipedes were particularly suited to being a means of locomotion on land. This strengthens the argument.
(B) All of the centipedes that had previously been discovered were land dwellers. This strengthens the argument.
(C) The rock in which the fossilized centipedes were found was formed from mud flats that were occasionally covered by river water. This would explain why fossilized remains of animals known to be water-dwelling were found in the same rock. Does not weaken the argument.
(D) Fossils of the earliest land-dwelling animals that had previously been identified were found in rock that did not contain fossilized remains of water-dwelling animals. Huh? So? How is this related to the argument and centipedes? Does not support the argument! I like it!
(E) Fossils of spiders with respiratory systems adapted only to breathing air were found in the same rock as the centipede fossils. This could indicate that centipedes shared their habitat with air-breathing spiders. Strengthens the argument.
|
|
|
|
|
|
Senior Manager
Joined: 08 Feb 2006
Posts: 251
Schools: Ross, Kellogg, Darden (i/v)
Followers: 1
Kudos [?]:
8
[0], given: 0
|
Yeah, the answer is D. Good explanation nervousGMAT.
|
|
|
|
|
|
Director
Joined: 29 Jul 2006
Posts: 877
Followers: 3
Kudos [?]:
10
[0], given: 0
|
Thanks for the explanation nervousgmat...The OA is D.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Moderators:
tuanquang269, RaviChandra, Vercules, Legendaddy, noboru, Marcab, metallicafan, rajeevrks27, willigetmylifeback, mikemcgarry, souvik101990, doe007, MacFauz, PTK, carcass, kissthegmat, Narenn
|
close
