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Prompted by observations of seemingly related species in
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13 May 2009, 02:47
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Prompted by observations of seemingly related species in neighboring locales that he made during his five-year voyage around the world on the HMS Beagle, Charles Darwin conceived his theory of natural selection in which all species evolved over time from a single ancestor or very few common ancestors.
A.in which all species evolved over time from a single ancestor or very few common ancestors
B.in which all species evolve from a single ancestor or very few common ancestors over time
C.whereby over time all species evolve from a single ancestor or very few common ancestors
D.whereby all species have evolved over time from a single ancestor or very few common ancestors
E.whereby all species evolved over time from a single ancestor or very few common ancestors
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Re: Prompted by observations of seemingly related species in
[#permalink]
13 May 2009, 03:19
IMO E
Prompted by observations of seemingly related species in neighboring locales that he made during his five-year voyage around the world on the HMS Beagle, Charles Darwin conceived his theory of natural selection in which all species evolved over time from a single ancestor or very few common ancestors.
A.in which all species evolved over time from a single ancestor or very few common ancestors --> in which seems incorrect. It means all species evolved in his theory of natural selection. Also, this structure is redundant with the existence of another prepositional phrase: from a single ancestor or ...
B.in which all species evolve from a single ancestor or very few common ancestors over time --> same error
C.whereby over time all species evolve from a single ancestor or very few common ancestors --> evolve is not correct. It should be evolved
D.whereby all species have evolved over time from a single ancestor or very few common ancestors -->have evolved is not suitable when being used in a past context
E.whereby all species evolved over time from a single ancestor or very few common ancestors --> best. correct tense evolved, correct use of whereby and no distortion of original meaning
Re: Prompted by observations of seemingly related species in
[#permalink]
13 May 2009, 20:08
Prompted by observations of seemingly related species in neighboring locales that he made during his five-year voyage around the world on the HMS Beagle, Charles Darwin conceived his theory of natural selection in which all species evolved over time from a single ancestor or very few common ancestors.
A.in which all species evolved over time from a single ancestor or very few common ancestors
B.in which all species evolve from a single ancestor or very few common ancestors over time
C.whereby over time all species evolve from a single ancestor or very few common ancestors
D.whereby all species have evolved over time from a single ancestor or very few common ancestors
E.whereby all species evolved over time from a single ancestor or very few common ancestors
I think it is A.
A describe of his theory has to be "in which" because you are going "into the theory" to explain the logic. So it leaves A & B. We are talking in the past tense therefore it has to be A.
Trying to think iof examples where whereby is used.
He made a declaration whereby all slaves were free to do what they want.
I think it's "in" because it's a theory.
What is stated in Einstein's theory? What is stated by E's theory?
Re: Prompted by observations of seemingly related species in
[#permalink]
15 May 2009, 00:00
rampuria wrote:
Prompted by observations of seemingly related species in neighboring locales that he made during his five-year voyage around the world on the HMS Beagle, Charles Darwin conceived his theory of natural selection in which all species evolved over time from a single ancestor or very few common ancestors.
A.in which all species evolved over time from a single ancestor or very few common ancestors
B.in which all species evolve from a single ancestor or very few common ancestors over time
C.whereby over time all species evolve from a single ancestor or very few common ancestors
D.whereby all species have evolved over time from a single ancestor or very few common ancestors
E.whereby all species evolved over time from a single ancestor or very few common ancestors
A/D/E are out as that implies species stopped evolving, which is false (logical error).
B/C remain.
B has a misplaced modifier.
Final Answer, C, although I don't like it. If it's E this is not an Official question.
Schools:Wharton (R2 - submitted); HBS (R2 - submitted); IIMA (admitted for 1 year PGPX)
Re: Prompted by observations of seemingly related species in
[#permalink]
15 May 2009, 02:18
Hades wrote:
rampuria wrote:
Prompted by observations of seemingly related species in neighboring locales that he made during his five-year voyage around the world on the HMS Beagle, Charles Darwin conceived his theory of natural selection in which all species evolved over time from a single ancestor or very few common ancestors.
A.in which all species evolved over time from a single ancestor or very few common ancestors
B.in which all species evolve from a single ancestor or very few common ancestors over time
C.whereby over time all species evolve from a single ancestor or very few common ancestors
D.whereby all species have evolved over time from a single ancestor or very few common ancestors
E.whereby all species evolved over time from a single ancestor or very few common ancestors
A/D/E are out as that implies species stopped evolving, which is false (logical error).
B/C remain.
B has a misplaced modifier.
Final Answer, C, although I don't like it. If it's E this is not an Official question.
Charles Darwin proposed a theory explaining a certain observation; he did not propound a fact. Usually, the present tense is used to denote facts: I like Mangoes. (Not: I liked Mangoes). Choice C seems to suggest this observation (over time all species evolve) as a fact; so I don't think that's right.
Choice A: All species evolved over time ... the phrase over time indicates the desired continuity over time and does not signal a complete stoppage of the evolution itself. Besides the intent is to indicate that the species evolved from a common ancestor ... not so much whether they are still evolving or not.
However all the above notwithstanding, I feel that "theory in which" sounds a bit suspect; at any rate I am not comfortable with it. But there is no other choice because theory whereby also doesn't seem quite right. So I choose A.
Re: Prompted by observations of seemingly related species in
[#permalink]
15 May 2009, 06:44
First, let's decide between in which and whereby.
in which is wrong because 'in theory' (inside it) cannot evolve species. By the way, whereby actually means 'by which way or method'
Thus, go further with whereby:
C. whereby over time all species evolve from a single ancestor or very few common ancestors - changes time of verb D. whereby all species have evolved over time from a single ancestor or very few common ancestors - changes time of verb E. whereby all species evolved over time from a single ancestor or very few common ancestors - the best answer
Re: Prompted by observations of seemingly related species in
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02 Jan 2010, 22:43
I choose E.
"whereby" makes more sense than "in which" because it explains his theory of what has happened over time; the way that something has occurred. "evolved" makes the most sense because it explains his present theory - where humans came from. We evolved from "a single ancestor or a few common ancestors"
Re: Prompted by observations of seemingly related species in
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08 May 2013, 23:06
1
Kudos
fozzzy wrote:
THe OA is D but why D? can someone explain!
Hi fozzzy. My reason for D is:
Prompted by observations of seemingly related species in neighboring locales that he made during his five-year voyage around the world on the HMS Beagle, Charles Darwin conceived his theory of natural selection in which all species evolved over time from a single ancestor or very few common ancestors.
A.in which all species evolved over time from a single ancestor or very few common ancestors Wrong. - "in which" is incorrect because species cannot evolve in natural selection. They must evolve through/by the natural selection. [whereby = by which] - If you use past tense (evolved), you imply that all species stopped evolving. Or the evolution is done! Nope, all species continue evolving.
B.in which all species evolve from a single ancestor or very few common ancestors over time Wrong. - "In which" is incorrect.
C.whereby over time all species evolve from a single ancestor or very few common ancestors Wrong. - Simple present tense does not convey the best meaning. Present perfect tense conveys idea much better.
D.whereby all species have evolved over time from a single ancestor or very few common ancestors Correct. - "whereby" = by which - Present perfect tense is correct.
E.whereby all species evolved over time from a single ancestor or very few common ancestors Wrong. - If you use past tense (evolved), you imply that all species stopped evolving. Or the evolution is done! Nope, all species continue evolving.
Hope it helps.
Regards.
Archived Topic
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This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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gmatclubot
Re: Prompted by observations of seemingly related species in [#permalink]