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A specific species of African monkey

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A specific species of African monkey  [#permalink]

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New post 24 Jul 2015, 11:43
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57% (02:15) correct 43% (02:10) wrong based on 311 sessions

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A specific species of African monkey performs an elaborate rain dance after the first rain. The fact that the actual movements which the monkeys of this species perform differ depending on the troop's location in Africa has led zoologists to believe that the dance comprises of specific movements that are a cultural rather than a genetic development.

Which of the following, if true, would most strengthen the conclusion drawn by the zoologists?


A--Each separate species of African monkey performs a different dance after the first rain.

B--There is a known case of a monkey of the mentioned species raised among monkeys of a different species that would perform a dance different from that performed by his adopting group after the first rain.

C--A recent zoological report was published describing ant-luring technique differences between separate groups of the same species of monkey as based on the type of ant prevalent in the monkey's specific habitat.

D--An infant monkey raised in captivity would move about slightly after the first rain of the year, but its movements did not resemble those of any of the groups found throughout Africa.

E--The dance comprises of movements that are very similar when comparing troops of the same species.

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Re: A specific species of African monkey  [#permalink]

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New post 07 Dec 2015, 19:50
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target2015 wrote:
A specific species of African monkey performs an elaborate rain dance after the first rain. The fact that the actual movements which the monkeys of this species perform differ depending on the troop's location in Africa has led zoologists to believe that the dance comprises of specific movements that are a cultural rather than a genetic development.



Oh, ok, I'll be the first one to comment :)

Ok, so the argument talks about specific species of monkeys
these monkeys perform a rain dance after the first rain.
the movements of a group of monkeys differ from those of other monkeys from another location.
The zoologists thus believe that the movements are learned and not inhered through genetics.

Which one would best support this? Clearly, the answer choice should present new information so that to make the conclusion more believable. Moreover, the answer choice can be even the assumption of the argument. Which is the assumption in this case? Zoologists must believe that monkeys raised in capture will not perform the same movements, or not perform at all the dance.

Let's move to the answer choices:

A--Each separate species of African monkey performs a different dance after the first rain.
This information is already given in the argument. note that since it is a strengthen type of question, we need to select an answer choice that would provide new information. A is out because what is said can be clearly inferred from the argument.

B--There is a known case of a monkey of the mentioned species raised among monkeys of a different species that would perform a dance different from that performed by his adopting group after the first rain.
this is a weakener. This one says that although a monkey is raised by monkeys from a different species, it performs a dance that is different from its adopting group. Thus, the dance movements is something programmed in its genetics. Out.

C--A recent zoological report was published describing ant-luring technique differences between separate groups of the same species of monkey as based on the type of ant prevalent in the monkey's specific habitat.
well, this one might be tricky, especially if you find the argument confusing. This is a clear OFS. It talks about ant-luring technique, which has nothing to do with the dance movements.

D--An infant monkey raised in captivity would move about slightly after the first rain of the year, but its movements did not resemble those of any of the groups found throughout Africa.
Aha! This one basically restates the assumption identified above. A monkey raised in captivity does not perform the dance. Thus, the dance is learned.

E--The dance comprises of movements that are very similar when comparing troops of the same species.
this one is irrelevant, and has no effect on the conclusion.


D is so far the best answer.
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A specific species of African monkey  [#permalink]

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New post 10 Feb 2016, 01:27
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Lets break down the argument in Mathematical terms

Region 1 has A, B and E spices of monkey, with sub-species A1 , A2, A3 and B1, B2 and B3 and E11, E12 and E13.

Region 2 has C and D and E spices of monkey, with sub-species C1, C2, C3 and D1, D2 and D3 and E21, E22 and E23.

Note- E species is common to both region

Conclusion- A1 , A2, A3 and B1, B2 and B3 and E11, E12 and E13 of Region 1 has style 1.

AND C1, C2, C3 and D1, D2 and D3 and E21, E22 and E23 of Region 2 has style 2.

How can it be strengthen--
if we prove that E11, E12 and E13 ----- E21, E22 and E23 has different style . BUT similar to their corresponding species.

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

A--Each separate species of African monkey performs a different dance after the first rain.

If A1, B1 and E11 species dance in MIXED style how can it would be culturally adapted. ELIMINATE

---------------------------------------------------------------------------------------------------------------------
B--There is a known case of a monkey of the mentioned species raised among monkeys of a different species that would perform a dance different from that performed by his adopting group after the first rain.

A new Monkey species com Z1 to Region 1 and Z1 dance DIFFERENTLY to A1 , B1 and E11 species--SO, its not culturally adapted . ELIMINATE


---------------------------------------------------------------------------------------------------------------------
C--A recent zoological report was published describing ant-luring technique differences between separate groups of the same species of monkey as based on the type of ant prevalent in the monkey's specific habitat.

SEEMS TRICKY, But can be eliminate because it deals with ANTS Dance--> We don't care
---------------------------------------------------------------------------------------------------------------------

E--The dance comprises of movements that are very similar when comparing troops of the same species.

E11, E12 and E13 ----- E21, E22 and E23 dance pattern are SIMILAR
So, it means genetically adapted, WEAKENS the argument ELIMINATAE
---------------------------------------------------------------------------------------------------------------------


Now comes D,

D--An infant monkey raised in captivity would move about slightly after the first rain of the year, but its movements did not resemble those of any of the groups found throughout Africa.

A new species comes to WORLD say L with sub-species L1, to Region 1 and other sub-species L2, L3, L4 throughout the world.

This option says
When L1 comes to Region 1 it dances in a way which can't be found THROUGHOUT THE WORLD--> Means L2, L3, L4 can't dance like L1
So, dance can't be genetically adopted.

Hence. STRENGTHENS the argument. :-D
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Re: A specific species of African monkey  [#permalink]

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New post 15 Mar 2018, 15:28
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Re: A specific species of African monkey &nbs [#permalink] 15 Mar 2018, 15:28
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