av2012 wrote:
Whereas in mammals the tiny tubes that convey nutrients to bone cells are arrayed in parallel lines, in birds the tubes form a random pattern.
(A) Whereas in mammals the tiny tubes that convey nutrients to bone cells are arrayed in parallel lines, in birds the tubes
(B) Whereas the tiny tubes for the conveying of nutrients to bone cells are arrayed in mammals in parallel lines, birds have tubes that
(C) Unlike mammals, where the tiny tubes for conveying nutrients to bone cells are arrayed in parallel lines, birds’ tubes
(D) Unlike mammals, in whom the tiny tubes that convey nutrients to bone cells are arrayed in parallel lines, the tubes in birds
(E) Unlike the tiny tubes that convey nutrients to bone cells, which in mammals are arrayed in parallel lines, in birds the tubes
Hi GMATClub Expert,
I need to compare
apple to apple or
orange to orange, not
apple to orange or
orange to apple, as far i know. So, in E, 'tiny tubes' is compared with 'bird's tiny tubes'. Most of us think that the first 'tiny tubes' may be ALL 'tiny tubes' in this world, and the 2nd 'tiny tubes' is only IN birds.
So, 'tiny tubes' in ALL and 'tiny tubes' in BIRDS are not the SAME thing; the comparison is NOT so sweet. So, if this the case, then in A, I think that 'tiny tubes' in MAMMALS and 'tiny tubes' in BIRDS are not the SAME thing at all! So, we can cross out choice A, too.
.
Do you think these two 'tiny tubes' are the SAME things, expert?Actually, what SHOULD we compare here? Should we compare just 'MAMMALS' with 'BIRDS' or 'tiny tubes' with 'tiny tubes'?
In apparently, it seems that we're comparing JUST
'apple' with 'apple', we're NOT comparing ONLY '
apple' with 'apple'; we're comparing the first 'apple', which comes from 'apple tree' and the 2nd 'apple', which MUST come from 'apple tree' too. If the 2nd 'apple' comes from 'orange tree', then it is NOT pure comparison
,too. If THIS is true, then 'tiny tubes' IN MAMMALS and 'tiny tubes' IN BIRDS does not make pure comparison at all.
Thank you all GMAT club members.