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Good one. Networks of blood vessels in bats wings serve only

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Good one. Networks of blood vessels in bats wings serve only [#permalink] New post 14 May 2010, 04:36
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Good one.

Networks of blood vessels in bats’ wings serve only to disperse heat generated in flight. This heat is generated only because bats flap their wings. Thus aleontologists’ recent discovery that the winged dinosaur Sandactylus had similar networks of blood vessels in the skin of its wings provides evidence for the hypothesis that Sandactylus flew by flapping its wings, not just by gliding.

In the passage, the author develops the argument by
(A) forming the hypothesis that best explains several apparently conflicting pieces of evidence
(B) reinterpreting evidence that had been used to support an earlier theory
(C) using an analogy with a known phenomenon to draw a conclusion about an unknown phenomenon
(D) speculating about how structures observed in present-day creatures might have developed from similar structures in creatures now extinct
(E) pointing out differences in the physiological demands that flight makes on large, as opposed to small, creatures
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Re: Networks of blood vessels in bats [#permalink] New post 14 May 2010, 05:43
ykaiim wrote:
Good one.

Networks of blood vessels in bats’ wings serve only to disperse heat generated in flight. This heat is generated only because bats flap their wings. Thus aleontologists’ recent discovery that the winged dinosaur Sandactylus had similar networks of blood vessels in the skin of its wings provides evidence for the hypothesis that Sandactylus flew by flapping its wings, not just by gliding.

In the passage, the author develops the argument by
(A) forming the hypothesis that best explains several apparently conflicting pieces of evidence >>> There are NO several pieces of conflicting evidences..!!
(B) reinterpreting evidence that had been used to support an earlier theory >>> The evidence is not REINTERPRETED...evidence has not not been changed/convoluted to support the other theory
(C) using an analogy with a known phenomenon to draw a conclusion about an unknown phenomenon >>> CORRECT
(D) speculating about how structures observed in present-day creatures might have developed from similar structures in creatures now extinct >>> There is no discussion about the evolution from Sandactylus to bats..!!
(E) pointing out differences in the physiological demands that flight makes on large, as opposed to small, creatures >>>Out of scope
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Re: Networks of blood vessels in bats [#permalink] New post 14 May 2010, 07:02
the flaw in the ARG is that author exaggerated his conclusion by considering Bat & dinosaur same....

any option specifying this should be answer...

C does it :)
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Re: Networks of blood vessels in bats [#permalink] New post 14 May 2010, 08:02
ykaiim wrote:
Good one.

Networks of blood vessels in bats’ wings serve only to disperse heat generated in flight. This heat is generated only because bats flap their wings. Thus aleontologists’ recent discovery that the winged dinosaur Sandactylus had similar networks of blood vessels in the skin of its wings provides evidence for the hypothesis that Sandactylus flew by flapping its wings, not just by gliding.

In the passage, the author develops the argument by
(A) forming the hypothesis that best explains several apparently conflicting pieces of evidence
(B) reinterpreting evidence that had been used to support an earlier theory
(C) using an analogy with a known phenomenon to draw a conclusion about an unknown phenomenon
(D) speculating about how structures observed in present-day creatures might have developed from similar structures in creatures now extinct
(E) pointing out differences in the physiological demands that flight makes on large, as opposed to small, creatures

It has to be C.
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Re: Networks of blood vessels in bats [#permalink] New post 14 May 2010, 12:20
C it is.
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Re: Networks of blood vessels in bats [#permalink] New post 14 May 2010, 12:46
Yeah it's gotta be C.
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Re: Networks of blood vessels in bats [#permalink] New post 14 May 2010, 15:12
"c" for sure , similer Q is mentioned in OG 11
Re: Networks of blood vessels in bats   [#permalink] 14 May 2010, 15:12
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Good one. Networks of blood vessels in bats wings serve only

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