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Archeologists have discovered three sites showing conclusive

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Concentration: Finance, Human Resources
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Archeologists have discovered three sites showing conclusive [#permalink]

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New post 07 Oct 2017, 13:18
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Difficulty:

  95% (hard)

Question Stats:

41% (01:57) correct 59% (02:20) wrong based on 212 sessions

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Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in Tanzania, from a period slightly after the time that Homo habilis was present in Africa. These sites clearly were founded by Homo erectus, the descendent species of Homo habilis that migrated north, out of Africa and into Asia. Homo erectus was known to have mastered fire, from ample evidence at sites in Asia. There is no reason to attribute mastery of fire to Homo ergaster, the descendent species of Homo habilis that remained in Africa.

Which of the following is an assumption on which the argument depends?

(A) Before their migration, Homo erectus occupied African territory as far south as Tanzania.
(B) The strain of migration provided the selective pressure motivating Homo erectus‘ mastery of fire.
(C) Homo ergaster would not have derived as much benefit from the mastery of fire as did Homo erectus.
(D) Homo ergaster inherited all cultural knowledge from Homo habilis, a species that did not have mastery of fire.
(E) Homo ergaster did not occupy regions as far south as Tanzania until well after the time of these three sites.


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[Reveal] Spoiler: OA

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Re: Archeologists have discovered three sites showing conclusive [#permalink]

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New post 09 Oct 2017, 09:09
Can someone explain why E is wrong and A is right ?

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Re: Archeologists have discovered three sites showing conclusive [#permalink]

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New post 09 Oct 2017, 15:47
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pra1785 wrote:
Can someone explain why E is wrong and A is right ?


Even I chose E but it is indeed a wrong answer. Let's try negation on A and E.

E says: Homo ergaster did not occupy regions as far south as Tanzania until well after the time of these three sites.
After negation
Homo ergaster did occupy regions as far south as Tanzania until well after the time of these three sites.

the argument does not fall apart. Now, let's try A

Before their migration, Homo erectus occupied African territory as far south as Tanzania.
After negation
Before their migration, Homo erectus not occupied African territory as far south as Tanzania.
Argument false apart as if they are not there in that territory how can we attribute the mastery of fire to them.

So, answer is A

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Archeologists have discovered three sites showing conclusive [#permalink]

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Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in Tanzania, from a period slightly after the time that Homo habilis was present in Africa. These sites clearly were founded by Homo erectus, the descendent species of Homo habilis that migrated north, out of Africa and into Asia. Homo erectus was known to have mastered fire, from ample evidence at sites in Asia. There is no reason to attribute mastery of fire to Homo ergaster, the descendent species of Homo habilis that remained in Africa.

First and foremost, there's a KEY item of reference that this question ASSUMES (I know, ironic) that people know: Tanzania is in Africa. I thought Tanzania was some sub-continent back when Pangaea was created and that IT WAS IN ASIA. Note the "from a period ..." describes the period NOT the location of Tanzania. After you get this..it's not that hard. Let's draw a treasure map.

------------------
ASIA
------------------
|
| Migration Path
|
-----------------
The Great Africa
[~~~~~~]
[ * * * ] - Tanzania (* * * = fire)
[~~~~~~]


-----------------

Now, let's boil down the argument!

*Evidence of fire found in Tanzania after Homo habilis was found there.
*Homo erectus (derived from Homo habilis) at some later time moved north and knew FIRE from evidence in ASIA (although we don't know when they learnt it)
*Homo egaster/eGANGSTAs (derived from Homo habilis) stayed in Africa.

Claim: The evidence of fire must be from Homo erectus and not the Homo eGangstas. Note this is a 2 part claim.


This claim sort of makes absolutely no sense. We'd need a lot of assumptions.

1) Homo erectus were in the area (before or after migration) AND Homo eGangstas were not in the area.

OR

2) Homo erectus were in the area (before or after migration) AND Homo eGangstas didn't know how to cook (Mastery of Fire)



Which of the following is an assumption on which the argument depends?

(A) Before their migration, Homo erectus occupied African territory as far south as Tanzania.
Part of Assumption 1)
(B) The strain of migration provided the selective pressure motivating Homo erectus‘ mastery of fire.
-Out of scope, we don't care about the cause for Mastery of Fire.
(C) Homo ergaster would not have derived as much benefit from the mastery of fire as did Homo erectus.
-Out of scope, we don't care about the benefits of Mastery of Fire.
(D) Homo ergaster inherited all cultural knowledge from Homo habilis, a species that did not have mastery of fire.
-Homo ergaster can still discover fire on their own.
(E) Homo ergaster did not occupy regions as far south as Tanzania until well after the time of these three sites

Let's negate! The "until" statement is a bit tricky here, here's an analogy:

Statement: You can not buy the car until you have enough money.
NEGATION: You can buy the car even if you don't have enough money.

Now the actual NEGATION: Homo eGANGSTAs did occupy regions well before the time of these three sites.
This fits the second part of (1)


[Reveal] Spoiler:
In my opinion, A and E are both correct and not COMPLETE.

_________________

Insanity at its finest.

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Re: Archeologists have discovered three sites showing conclusive [#permalink]

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New post 12 Oct 2017, 16:28
Thank you very much this is useful

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Re: Archeologists have discovered three sites showing conclusive   [#permalink] 12 Oct 2017, 16:28
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Archeologists have discovered three sites showing conclusive

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