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Humans evolved from homo sapiens in Europe and homo erectus in Asia.

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Humans evolved from homo sapiens in Europe and homo erectus in Asia. [#permalink]

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New post 22 Mar 2017, 23:47
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A
B
C
D
E

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63% (01:05) correct 37% (00:58) wrong based on 97 sessions

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Humans evolved from homo sapiens in Europe and homo erectus in Asia. These species shared an identical genetic code, yet the tools used by them differed vastly. Therefore, historians conclude that tools developed and used had less to do with the genetic ability of the population and more with the requirements for survival.

What do the historians assume in drawing the conclusion?
A>There are more similarities than differences between homo sapiens and homo erectus.
B>Homo sapiens who had more easy access to food built tools that did not have the range that the tools built by homo erectus possessed.
C>Homo sapiens and homo erectus seldom had any contact with each other.
D>Homo Sapiens needed different tools to survive than Homo erectus did.
E>The tools developed in any region are dependent on natural resources such as steel, copper, etc. in that region
[Reveal] Spoiler: OA
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Re: Humans evolved from homo sapiens in Europe and homo erectus in Asia. [#permalink]

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New post 22 Mar 2017, 23:50
Please reply why is it D and not B.

D is simply an inference
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Re: Humans evolved from homo sapiens in Europe and homo erectus in Asia. [#permalink]

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New post 23 Mar 2017, 00:03
nailin16 wrote:
Please reply why is it D and not B.

D is simply an inference


Humans evolved from homo sapiens in Europe and homo erectus in Asia. These species shared an identical genetic code, yet the tools used by them differed vastly. Therefore, historians conclude that tools developed and used had less to do with the genetic ability of the population and more with the requirements for survival.

What do the historians assume in drawing the conclusion?
A>There are more similarities than differences between homo sapiens and homo erectus.
B>Homo sapiens who had more easy access to food built tools that did not have the range that the tools built by homo erectus possessed.
C>Homo sapiens and homo erectus seldom had any contact with each other.
D>Homo Sapiens needed different tools to survive than Homo erectus did.
E>The tools developed in any region are dependent on natural resources such as steel, copper, etc. in that region

Conclusion : historians conclude that tools developed and used had less to do with the genetic ability of the population and more with the requirements for survival.
Premises : species shared an identical genetic code, yet the tools used by them differed vastly.

An assumption is a linkage between premise and conclusion.
One sure shot way to find the assumption is to negate.
Here B talks about Range while the argument in itself shows no reference. Its clearly Out of scope .
if you negate B how does it shatter the conclusion?
On the other hand negate D,
Homo Sapiens didn't need different tools to survive than Homo Erectus did.
If they didn't need different tools they would have landed up building similar tools to survive. This shatters the conclusion .
hence D is correct.

Hope i am clear.
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Re: Humans evolved from homo sapiens in Europe and homo erectus in Asia. [#permalink]

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New post 23 Mar 2017, 00:15
An assumption is what must be true for the conclusion to be true.

B>Homo sapiens who had more easy access to food built tools that did not have the range that the tools built by homo erectus possessed.

This passage does not support this answer choice. Nothing in this passage talks about more access of food or the range of tools. This choice can not be assumed with the given facts.
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Re: Humans evolved from homo sapiens in Europe and homo erectus in Asia. [#permalink]

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New post 24 Mar 2017, 11:11
Humans evolved from homo sapiens in Europe and homo erectus in Asia. These species shared an identical genetic code, yet the tools used by them differed vastly. Therefore, historians conclude that tools developed and used had less to do with the genetic ability of the population and more with the requirements for survival.

What do the historians assume in drawing the conclusion?
A>There are more similarities than differences between homo sapiens and homo erectus.
B>Homo sapiens who had more easy access to food built tools that did not have the range that the tools built by homo erectus possessed.
C>Homo sapiens and homo erectus seldom had any contact with each other.
D>Homo Sapiens needed different tools to survive than Homo erectus did.
for survival purpose only the tools differred as mentioned in the passage.
Correct
E>The tools developed in any region are dependent on natural resources such as steel, copper, etc. in that region
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Re: Humans evolved from homo sapiens in Europe and homo erectus in Asia.   [#permalink] 24 Mar 2017, 11:11
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