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For some birds the sense of smell appears to play a role in

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For some birds the sense of smell appears to play a role in [#permalink] New post 28 Jun 2004, 01:23
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A
B
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For some birds the sense of smell appears to play a role in navigation, since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.
(A) were found to have increased difficulties
(B) have been found to have increased difficulty
(C) were found to have increasing difficulty
(D) had been found to have increased difficulties
(E) have been found to have increasing difficulties

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 [#permalink] New post 28 Jun 2004, 03:38
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Present Perfect should be used to show the result of experiments conducted. Hence B.
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 [#permalink] New post 28 Jun 2004, 07:40
ob wrote:
Present Perfect should be used to show the result of experiments conducted. Hence B.


Both B and E have present perfect. Can you explain further please ?

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 [#permalink] New post 28 Jun 2004, 07:52
the difference between B and E is in the phrase "increasing difficulty "

increasing difficulties is not required here, just because the pigeons are many in number, "increasing difficulty" describes what the all the pigeons suffer, the plural is not required.

Hence Choice is B
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 [#permalink] New post 28 Jun 2004, 08:03
Ghunoo wrote:
the difference between B and E is in the phrase "increasing difficulty "

increasing difficulties is not required here, just because the pigeons are many in number, "increasing difficulty" describes what the all the pigeons suffer, the plural is not required.

Hence Choice is B


I think that error is more to do with using increasing ( continuous tense) compared with increased, which is better.

I couldn't understand how using the plural difficulties introduces an error.

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 [#permalink] New post 28 Jun 2004, 18:43
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ashkg wrote:
I think that error is more to do with using increasing ( continuous tense) compared with increased, which is better.

I couldn't understand how using the plural difficulties introduces an error.
-ash


present perfect tense is used for an action that extends from past to present. Here, it's been proved that if we remove the olfactory organs of a pigeon, it will find difficulty in homing. past --> still valid.

E entails present continuous tense. Does that mean difficulty is increasing steadily?? that doesn't hold good.
I don't think 'difficulties plays any role here in chosing the answer.
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 [#permalink] New post 29 Jun 2004, 00:25
First, "increasing" in E is not right. Simply put, you compare two sets of data: one in which birds have little difficulty in homing and the other in which birds have more difficulty. The difficulty is "enreased", not "encreasing."
Seconds, "difficulty" should be used here.
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 [#permalink] New post 29 Jun 2004, 07:12
ashkg wrote:

I think that error is more to do with using increasing ( continuous tense) compared with increased, which is better.

I couldn't understand how using the plural difficulties introduces an error.

-ash


yep........increasing ....has the continuous context...so it's wrong.
ob,
Without sounding too picky.......be careful of your spelling.....it will be helpful in AWA :)

- take care
ash

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 [#permalink] New post 30 Jun 2004, 12:31
can anyone explain whats not correct with

A

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Re: mysc - 104 [#permalink] New post 30 Jun 2004, 16:16
ashkg wrote:
(A) were found to have increased difficulties
(B) have been found to have increased difficulty
(C) were found to have increasing difficulty


I believe that were means that the action has happend in the past and finished, while the experimaent is still valid until now so we have to use the past percfet. I hope this will help. :-D

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 [#permalink] New post 30 Jun 2004, 22:10
lastochka wrote:
ob wrote:
Present Perfect should be used to show the result of experiments conducted. Hence B.


Is this the only reason why A is wrong?


Please refer to my other post above. :)
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Re: For some birds the sense of smell appears to play a role in [#permalink] New post 22 Jan 2014, 10:37
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Re: For some birds the sense of smell appears to play a role in   [#permalink] 22 Jan 2014, 10:37
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