Some paleontologists believe that certain species of : GMAT Critical Reasoning (CR)
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# Some paleontologists believe that certain species of

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Some paleontologists believe that certain species of [#permalink]

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25 Nov 2011, 08:42
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25% (medium)

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70% (02:22) correct 30% (01:17) wrong based on 130 sessions

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Some paleontologists believe that certain species of
dinosaurs guarded their young in protective nests long
after the young hatched. As evidence, they cite the
discovery of fossilized hadrosaur babies and
adolescents in carefully designed nests. But similar
nests for hatchlings and adolescents are constructed by
modem crocodiles, even though crocodiles guard their
young only for a very brief time after they hatch.
Hence, ___ .

Which one of the following most logically completes
the argument?

(A) paleontologists who believe that hadrosaurs
guarded their young long after the young
hatched have no evidence to support this belief
(B) we wi1lnever be able to know the extent to
(C) hadrosaurs guarded their young for at most very
brief periods after hatching
(D) it is unclear whether what we learn about
hadrosaurs from their fossilized remains tells
(E) the construction of nests for hatchlings and
adolescents is not strong evidence for the
paleontologists' belief
[Reveal] Spoiler: OA

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squeakvm

Last edited by GloriousResolve on 26 Nov 2011, 06:23, edited 1 time in total.
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25 Nov 2011, 12:09
E?
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Persistence.

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25 Nov 2011, 17:08
+1 for E.

Only E can be concluded from the argument without making any further assumptions.

What is the OA?
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26 Nov 2011, 00:18
IMO E. OA ?
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26 Nov 2011, 01:44
+1 E
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07 Dec 2011, 03:08
+ 1 E

(A) paleontologists who believe that hadrosaurs
guarded their young long after the young
hatched have no evidence to support this belief => in fact, scientists have evidences
(B) we wi1lnever be able to know the extent to
which hadrosaurs guarded their young => not mentioned in the argument
(C) hadrosaurs guarded their young for at most very
brief periods after hatching => not know
(D) it is unclear whether what we learn about
hadrosaurs from their fossilized remains tells
us anything about other dinosaurs => totally wrong

(E) the construction of nests for hatchlings and
adolescents is not strong evidence for the
paleontologists' belief => clearly true. After similar nests of crocodiles show the evidence of little caring their calves
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09 Jan 2012, 02:23
E
whats OA?
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09 Jan 2012, 04:31
i got C, but I see why E.

thanks
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Re: Some paleontologists believe   [#permalink] 09 Jan 2012, 04:31
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