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# Scientists believe that unlike the males of most species of

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Scientists believe that unlike the males of most species of [#permalink]

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20 Sep 2008, 00:58
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Scientists believe that unlike the males of most species of moth, the male whistling moths of Nambung, Australia, call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.
(A) by the use of acoustical signals, but not olfactory ones, and they attract
(B) by the use of acoustical signals instead of using olfactory ones, and attracting
(C) by using acoustical signals, not using olfactory ones, and by attracting
(D) using acoustical signals, rather than olfactory ones, and attract
(E) using acoustical signals, but not olfactory ones, and attracting
[Reveal] Spoiler: OA

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Re: Scientists believe that unlike the males of most species of [#permalink]

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20 Sep 2008, 01:39
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D.
by the use of can be simply expressed by using
and last THEY in A is redundant. A and B out.

C is out because By atrracting is not correct usage. Even though we assume it were to keep parallelizm by must be used before using olfactory.

E. logically Call and Atract must be parallel.

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Re: Scientists believe that unlike the males of most species of [#permalink]

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20 Sep 2008, 12:21
OA Is D.

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Re: Scientists believe that unlike the males of most species of [#permalink]

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20 Sep 2008, 12:27
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The use of the verb 'call' should eliminate 'attracting'.

So, B,C & E out.

A - they attract is unnecessary. Just 'attract' will do.

D - My choice.

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Scientists believe that unlike the males of most species of [#permalink]

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18 Oct 2010, 02:04
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Scientists believe that unlike the males of most species of moth, the male whistling moths of Numbing, Australia, call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.

a) by the use of acoustical signals, but not olfactory ones, and they attract
b) by the use of acoustical signals instead of using olfactory ones, and attracting
c) by using acoustical signals, not using olfactory ones, and by attracting
d) using acoustical signals, rather than olfactory ones, and attract
e) using acoustical signals, but not olfactory ones, and attracting
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18 Oct 2010, 06:28
A clear parallelism question.
1. whistling = using
2. rather than
A. "by the use" - incorrect.
B. same as A.
C. by using sounds wrong.
Only D & E have "using". D is correct because it uses the idiom rather than (the same one that appears in the end of the sentence).

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18 Oct 2010, 06:36
Pkit wrote:
Scientists believe that unlike the males of most species of moth, the male whistling moths of Numbing, Australia, call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.

a) by the use of acoustical signals, but not olfactory ones, and they attract
b) by the use of acoustical signals instead of using olfactory ones, and attracting
c) by using acoustical signals, not using olfactory ones, and by attracting
d) using acoustical signals, rather than olfactory ones, and attract
e) using acoustical signals, but not olfactory ones, and attracting

I will go for E.
A is incorrect as there is pronoun ambiguity "they" Moreover, there is no need to use "by"
B is oncorrect because of faulty parallelism
C is out for parallelism
D is out for the same reason.
E is correct. Maintains correct parallelism Moreover, you also have to ensure that the original meaning of the sentence is retained in the correct answer choice. "Instead" and "rather" are not the correct words in this context as both of them have a different meaning than "but". Also, the use of "by" is unnecessary as it makes the sentence more wordier.

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18 Oct 2010, 06:40
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shekharvineet wrote:
C is out for parallelism
D is out for the same reason.
E is correct. Maintains correct parallelism Moreover, you also have to ensure that the original meaning of the sentence is retained in the correct answer choice. "Instead" and "rather" are not the correct words in this context as both of them have a different meaning than "but". Also, the use of "by" is unnecessary as it makes the sentence more wordier.

I will demosntrate you that D is quite a parallel.
D is not right because of rather than, but ....
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18 Oct 2010, 06:41
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The core of the issue is parallelism; - call female moths - and -attract their mates - are the two functions that the male moths do and both of them should be parallel. The present participial -attracting -is wrong wherever it appears. The intrusion of a subject pronoun - they - is unnecessary in A and is a redundant use, in cases in which the subjects of both parts of the sentences remain the same

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18 Oct 2010, 07:02
Pkit wrote:
shekharvineet wrote:
C is out for parallelism
D is out for the same reason.
E is correct. Maintains correct parallelism Moreover, you also have to ensure that the original meaning of the sentence is retained in the correct answer choice. "Instead" and "rather" are not the correct words in this context as both of them have a different meaning than "but". Also, the use of "by" is unnecessary as it makes the sentence more wordier.

I will demosntrate you that D is quite a parallel.
D is not right because of rather than, but ....

And I did mention the use of "rather" is incorrect. Read the last three lines of my explanation. The reason I didnt mention it in the earlier part is to avoid repetiton. But good you pointed it out that it uses two connecting words instead of one.. I have a habit of pointing out the major errors in the footnotes.
What is the OA? i must admit it's a good question.
+1 to you.

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18 Oct 2010, 07:41
shekharvineet wrote:
And I did mention the use of "rather" is incorrect. Read the last three lines of my explanation. The reason I didnt mention it in the earlier part is to avoid repetiton. But good you pointed it out that it uses two connecting words instead of one.. I have a habit of pointing out the major errors in the footnotes.
What is the OA? i must admit it's a good question.
+1 to you.

Sorry mate, if I have offended you in some way, it was not my intention. My second statement was adressed to rav79 as he said:
Quote:
D is correct because it uses the idiom rather than (the same one that appears in the end of the sentence).

Yes, daagh is right. call female moths - and -attract their mates - are the two functions that the male moths do and both of them should be parallel.

daagh - great explanations.
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18 Oct 2010, 07:47
No Pkit, not at all. Infact I really liked this question for which I gave a kudo. You and daagh are doing a great service to this forum by posting challenging questions. I don't know about others but I an certainly benefitting from your efforts as it is significantly strengthening my SC.
Keep up the good work Pkit.

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18 Oct 2010, 08:00
shekharvineet wrote:
whats the OA?

It is D.
Press reveal,which is under the question, to see the OA.
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18 Oct 2010, 22:26
D

Besides grammatical reasons.

Male Moths call female moths (by) using acoustic signal (ok)
Male Moths call female moths (by) attracting during the day (very awkward)
Male Moths call female moths (by) using acoustic signal............ and attract during the day (ok)

I understand how one can be tempted to choose E, but if you consider the passage's meaning and words, then it becomes a little clearer.
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18 Oct 2010, 23:00
shekharvineet wrote:
No Pkit, not at all. Infact I really liked this question for which I gave a kudo. You and daagh are doing a great service to this forum by posting challenging questions. I don't know about others but I an certainly benefitting from your efforts as it is significantly strengthening my SC.
Keep up the good work Pkit.

thank you, shekharvineet

You may find a lot of SC questions of difficult levels and different concepts using search engine.
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Re: Scientists believe that unlike the males of most species of [#permalink]

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16 Dec 2010, 16:30
OA=D Agreed with explanations given.

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Re: Scientists believe that unlike the males of most species of [#permalink]

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30 Aug 2011, 06:41
more of a logical question than a grammar one...
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Re: Scientists believe that unlike the males of most species of [#permalink]

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03 Apr 2014, 07:20
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Re: Scientists believe that unlike the males of most species of [#permalink]

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12 Sep 2014, 12:07
Raihanuddin wrote:
I am totally confused about the answer. Because If I choose D as answer I have to agree with ' The male ..... call female moths to them using acoustical signals'. The issue is here - how do they call? If we use this option 'using' is modifying female moths and this is not the intended meaning.

In A, the problem I mentioned in D was corrected but again "they" is not clear here. So the two contenders for right answer in this question have problem. Am I correct?

Others are not correct for breaking the parallelism.

I need expert help.

Hello Raihanuddin.

In this sentence, "using" is not a verb-ing modifier form that modifies a preceding noun. "using" modifies verb "call", not noun "them. This case is irregular, so we have to remember.

The rule is: by the use of = by means of = using

"using" is the short form of "by the use of".

You can say:
A do B by the use of C
A do B by means of C
A do B using C

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Re: Scientists believe that unlike the males of most species of [#permalink]

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12 Sep 2014, 12:16
pqhai wrote:
Raihanuddin wrote:
I am totally confused about the answer. Because If I choose D as answer I have to agree with ' The male ..... call female moths to them using acoustical signals'. The issue is here - how do they call? If we use this option 'using' is modifying female moths and this is not the intended meaning.

In A, the problem I mentioned in D was corrected but again "they" is not clear here. So the two contenders for right answer in this question have problem. Am I correct?

Others are not correct for breaking the parallelism.

I need expert help.

Hello Raihanuddin.

In this sentence, "using" is not a verb-ing modifier form that modifies a preceding noun. "using" modifies verb "call", not noun "them. This case is irregular, so we have to remember.

The rule is: by the use of = by means of = using

"using" is the short form of "by the use of".

You can say:
A do B by the use of C
A do B by means of C
A do B using C

Ok.
Now if I say, Joe killed the snake using the stick. What does it mean then? I don't think it is correct.
Can we say here "Joe killed the snake by the use of stick.' We can't. So how will I understand that using is not modifying noun here?

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Re: Scientists believe that unlike the males of most species of   [#permalink] 12 Sep 2014, 12:16

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