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A newborn kangaroo, or joey, is born after a short gestation

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Re: Fore Limbs [#permalink] New post 02 Sep 2011, 05:44
My answer is (D).

Reason:
Premise:Young kangaroo's forelimb developed--> crawled into mother's pouch for FURTHER development.
Premise:Marsupital lion's forelimb developed.
Conclusion: They must have climed to mother's pouch.
This will be true only if it had not its hind limb developed.
Coice (D) addresses this. If we prephase this choice, if the lion's hind limb were developed it couldnt have climbed to mother's pouch. This asserts that young lion's hindlimb was not developed. This is the assumption required for the young lion to climb to mother's pouch.
If we negate this option:
"Newborn marsupial lions that crawled into their mothers’ pouches could also have done so had they not had only their forelimbs developed at birth." - they could have climbed even if hind limb developed.

then hypothesis that newborn marsupial lions must also have needed to climb into their mothers’ pouches.-would have been weakened , becasue if hindlibs were developed they did not NEED to to that as they do not need any FURTHER DEVELOPMENT as was the case with the young kangaroo.
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Re: A newborn kangaroo, or joey, is born after a short gestation [#permalink] New post 20 Apr 2012, 18:50
This one took me 2:30 sec, is it too slow for this type of question?
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Re: A newborn kangaroo, or joey, is born after a short gestation [#permalink] New post 07 May 2012, 05:58
thought it was D..now E seems correct
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Re: A newborn kangaroo, or joey, is born after a short gestation [#permalink] New post 22 May 2012, 10:40
IMO D is the correct answwer... :confused!
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Re: A newborn kangaroo, or joey, is born after a short gestation [#permalink] New post 13 Jun 2012, 21:25
could anyone please explain the answer further? how do i eliminate other choices here?
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Re: A newborn kangaroo, or joey, is born after a short gestation   [#permalink] 13 Jun 2012, 21:25
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