It is currently 20 Oct 2017, 11:29

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Networks of blood vessels in bat's wings server only to

Author Message
Intern
Joined: 30 Sep 2008
Posts: 5

Kudos [?]: [0], given: 0

Networks of blood vessels in bat's wings server only to [#permalink]

### Show Tags

17 Jan 2009, 01:59
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions

### HideShow timer Statistics

Networks of blood vessels in bat's wings server only to disperse heat generated in flight. This heat is generated only because bats flip their wings. Thus paleontologists' recent discovery that winged dinosaur SS had similar netw of blood vessels in the skin of its wings provides evidence for the hypothesis that SS flew by flapping its wings, not just by gliding.

The argument in the passage relies on which of the following assumptions ?

1. SS would have had netw of blood vessels in the skin of its wings if these netw were of no use to SS

2. Heat generated by SS in flapping its wings in flight could not have been dispersed by anything other than the blood vessel in its wings.

There are other options as well for answers. But i got confused betw these 2 above.

Can anyone suggest which is the answer ?

Kudos [?]: [0], given: 0

Manager
Joined: 16 Jan 2008
Posts: 102

Kudos [?]: 11 [0], given: 6

### Show Tags

17 Jan 2009, 08:25
samirsingh wrote:
Networks of blood vessels in bat's wings server only to disperse heat generated in flight. This heat is generated only because bats flip their wings. Thus paleontologists' recent discovery that winged dinosaur SS had similar netw of blood vessels in the skin of its wings provides evidence for the hypothesis that SS flew by flapping its wings, not just by gliding.

The argument in the passage relies on which of the following assumptions ?

1. SS would have had netw of blood vessels in the skin of its wings if these netw were of no use to SS

2. Heat generated by SS in flapping its wings in flight could not have been dispersed by anything other than the blood vessel in its wings.

There are other options as well for answers. But i got confused betw these 2 above.

Can anyone suggest which is the answer ?

1 for me.
2 is extreme and irrelevant

Kudos [?]: 11 [0], given: 6

Re: CR-Networks of blood...   [#permalink] 17 Jan 2009, 08:25
Display posts from previous: Sort by