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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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Sasha: It must be healthy to follow a diet high in animal proteins and fats. Human beings undoubtedly evolved to thrive on such a diet, since our prehistoric ancestors ate large amounts of meat.

Jamal: But our ancestors also exerted themselves intensely in order to obtain this food, whereas most human beings today are much less physically active.

Jamal responds to Sasha by doing which of the following?

A. Refuting her statement about our prehistoric ancestors- incorrect, Jamal is not refuting Sasha's statement about the prehistoric ancestors of humans
B. Bringing forth a piece of information for the purpose of suggesting that she should qualify her main conclusion- Correct, Jamal adds new information that qualifies Sasha's claim. It would be healthy for humans of today to follow a diet high in animal proteins and fats ONLY IF the humans of today engage in as much physical activity as their ancestors did.
C. Citing additional evidence that indirectly supports her conclusion and suggests a way to broaden it - incorrect, Jamal cities additional evidence but he does not indirectly support her conclusion. Also, Jamal qualifies Sasha's arugment and does not broaden it.
D. Questioning whether her assumption about our prehistoric ancestors permits any conclusions about human evolution - irrelevant, human evolution is out of scope
E. Expressing doubts about whether most human beings today are as healthy as our prehistoric ancestors were- incorrect, Jamal states that compared to their ancestors, humans of today are much less physically active.

Answer B
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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gmatt1476 wrote:
Sasha: It must be healthy to follow a diet high in animal proteins and fats. Human beings undoubtedly evolved to thrive on such a diet, since our prehistoric ancestors ate large amounts of meat.

Jamal: But our ancestors also exerted themselves intensely in order to obtain this food, whereas most human beings today are much less physically active.

Jamal responds to Sasha by doing which of the following?

A. Refuting her statement about our prehistoric ancestors
B. Bringing forth a piece of information for the purpose of suggesting that she should qualify her main conclusion
C. Citing additional evidence that indirectly supports her conclusion and suggests a way to broaden it
D. Questioning whether her assumption about our prehistoric ancestors permits any conclusions about human evolution
E. Expressing doubts about whether most human beings today are as healthy as our prehistoric ancestors were


CR30370.01


Official Explanation

Argument Construction

Sasha argues that, because our prehistoric ancestors consumed large amounts of meat, humans must have evolved to thrive on a diet of animal proteins and fats. She concludes from this that it must be good for us to consume such a diet.

Jamal responds by pointing out that our ancestors exerted themselves much more than we do, primarily to catch this food.

This question asks for the best characterization, among the answer choices, of Jamal's response.

A. Jamal implicitly accepts Sasha's statement that our prehistoric ancestors consumed large amounts of meat. Therefore, Jamal does not refute this statement made by Sasha.

B. Correct. Jamal's response indicates that our prehistoric ancestors were far more active than we are. This suggests not that Sasha is incorrect in her statement, but that her conclusion would benefit from this qualification: a diet high in animal protein and fat is healthy when one engages in intense physical activity at a level that is higher than what is normal for modern human beings.

C. Jamal's response suggests that Sasha make her conclusion more restrictive rather than more broad.

D. Jamal suggests a qualification of Sasha's argument based on the behavior of prehistoric human beings versus modern human beings. This in no way suggests that her assumption about our prehistoric ancestors tells us anything about evolution.

E. Jamal does not question whether most modern human beings are as healthy as our prehistoric ancestors. However, he does question whether a diet high in animal proteins and fats is healthy without adjusting one's level of intense physical activity.

The correct answer is B.
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
TheGMATCo wrote:
D. Questioning whether her assumption about our prehistoric ancestors permits any conclusions about human evolution
Incorrect. The assumption Sasha makes about our prehistoric ancestors is that the diet they ate was healthy for them, and the conclusion that Sasha makes about human evolution is that humans evolved to thrive on a diet high on animal proteins and fats. However, Jamal never questions the link between this assumption and this or any other conclusion. Jamal presents information on how humans ‘today’ differ from our prehistoric ancestors. He doesn’t at all talk about human evolution.

Questioning the link between this assumption and this conclusion would be suggesting that even though the ancestors ate such a diet, humans may not have evolved to thrive on such a diet.

In addition, this option mentions “permits any conclusions”, suggesting that Jamal ruled out drawing ‘any’ conclusion from Sasha’s assumption about prehistoric ancestors. Jamal does not do this.

Thanks, I had initially chosen option D, but after reading your explanation, it's clear why D is not correct.
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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what does it mean by - "she should qualify her main conclusion" in option B?
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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Let's crack to it, shall we.

It's either B or E.

B. Bringing forth a piece of information for the purpose of suggesting that she should qualify her main conclusion
Correct. Don't get stumped by the word 'qualify'. It simply means to add a condition to something. Example: I'm the best in the world at long jump... when I'm at my peak strength. Jamal highlights evidence that adds a condition to Sasha's conclusion - simply that it must be healthy to follow a diet high in animal proteins and fats. This argument is true, on the condition that people are as physically active as our ancestors, otherwise it is not.

E. Expressing doubts about whether most human beings today are as healthy as our prehistoric ancestors were
Incorrect. If we read Jamal’s statement by itself, it doubts whether human beings today are as healthy as our prehistoric ancestors were. This is a classic trap for this type of question... Basically restating the content in the statement. Cool but why restate something we already know? The question asks us to find the way in which Jamal responds to Sasha. This requires a deeper analysis, which is not going on in E.
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
gmatt1476 wrote:
Sasha: It must be healthy to follow a diet high in animal proteins and fats. Human beings undoubtedly evolved to thrive on such a diet, since our prehistoric ancestors ate large amounts of meat.

Jamal: But our ancestors also exerted themselves intensely in order to obtain this food, whereas most human beings today are much less physically active.

Jamal responds to Sasha by doing which of the following?

A. Refuting her statement about our prehistoric ancestors
B. Bringing forth a piece of information for the purpose of suggesting that she should qualify her main conclusion
C. Citing additional evidence that indirectly supports her conclusion and suggests a way to broaden it
D. Questioning whether her assumption about our prehistoric ancestors permits any conclusions about human evolution
E. Expressing doubts about whether most human beings today are as healthy as our prehistoric ancestors were


CR30370.01

Sasha says something(following a protein rich diet having lots of meat is healthy) citing past(prehistoric ancestors) evidence.
Jamal suggests why the logic she uses to support her argument might not be valid in current scenario.(By saying that they also used to exert themselves physically)
Now coming to the options:
A)He doesn't refute her statement. He adds some more detail to it. Incorrect
B) Qualify here means trying to limit. He adds the information about physical exertion in order to limit the scope of the conclusion. Because they were physically more active, it was healthy for them to eat high protein diet.So he limits her conclusion by adding this information. Correct
C)The evidence provided by him does just the opposite of what this option says. Incorrect
D)He doesn't question her assumption. Incorrect
E)He does say that humans today are less physically active than their prehistoric ancestors but he makes no comments about their health. Incorrect
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
VeritasKarishma GMATNinja
please explain option E i didn't get why it's wrong
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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gmatt1476 wrote:
Sasha: It must be healthy to follow a diet high in animal proteins and fats. Human beings undoubtedly evolved to thrive on such a diet, since our prehistoric ancestors ate large amounts of meat.

Jamal: But our ancestors also exerted themselves intensely in order to obtain this food, whereas most human beings today are much less physically active.

Jamal responds to Sasha by doing which of the following?

A. Refuting her statement about our prehistoric ancestors
B. Bringing forth a piece of information for the purpose of suggesting that she should qualify her main conclusion
C. Citing additional evidence that indirectly supports her conclusion and suggests a way to broaden it
D. Questioning whether her assumption about our prehistoric ancestors permits any conclusions about human evolution
E. Expressing doubts about whether most human beings today are as healthy as our prehistoric ancestors were


CR30370.01


Sasha: Human beings undoubtedly evolved to thrive on animal derived diet, since our prehistoric ancestors ate large amounts of meat.
It must be healthy to follow a diet high in animal proteins and fats.

Jamal: But our ancestors also exerted themselves intensely in order to obtain this food, whereas most human beings today are much less physically active.

Jamal gives some new information for her consider. He does not challenge her premises. He brings in information which should make her re-consider her conclusion.

A. Refuting her statement about our prehistoric ancestors

He does not refute her statement.

B. Bringing forth a piece of information for the purpose of suggesting that she should qualify her main conclusion

Correct. He brings in a piece of info to suggest that she should qualify (modify or limit) her main conclusion. He is saying that most humans are much less physically active, so she could modify her conclusion to "Animal based diet would be healthy for humans who are as physically active as our ancestors"

C. Citing additional evidence that indirectly supports her conclusion and suggests a way to broaden it

His info does not support her conclusion.

D. Questioning whether her assumption about our prehistoric ancestors permits any conclusions about human evolution

He doesn't question whether old data is relevant for conclusions today. He gives information on how things are different today so modifications may be needed to applicability of old data.

E. Expressing doubts about whether most human beings today are as healthy as our prehistoric ancestors were

He says that humans today are not as physically active. Whether they are as healthy or not is not discussed.
The point of discussion is whether animal base diet is healthy or not.

Answer (B)
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
Sasha: It must be healthy to follow a diet high in animal proteins and fats. Human beings undoubtedly evolved to thrive on such a diet, since our prehistoric ancestors ate large amounts of meat.

Jamal: But our ancestors also exerted themselves intensely in order to obtain this food, whereas most human beings today are much less physically active.

Jamal responds to Sasha by doing which of the following?

Sasha claim that ancestor ate meat, so we modern people also should follow that diet. Jamal brought a new piece of information that people now are much less physically active, so what applies to ancestor may not apply to modern people

A. Refuting her statement about our prehistoric ancestors No claim about ancestor is made by Jamal
B. Bringing forth a piece of information for the purpose of suggesting that she should qualify her main conclusion Yes. new piece of info is introduced. Qualify means that Sasha should reduce the claim to a reasonable level
C. Citing additional evidence that indirectly supports her conclusion and suggests a way to broaden it No, the new evidence suggest Sasha to narrow her conclusion down
D. Questioning whether her assumption about our prehistoric ancestors permits any conclusions about human evolution No human evolution is of interest in this question
E. Expressing doubts about whether most human beings today are as healthy as our prehistoric ancestors were no comparison is made regarding the healthiness of ancestors and modern people
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Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
Hi MartyTargetTestPrep - how is Sasha's argument structured specifically.

Is it scenario # 1 in my picture below or scenario # 2 or perhaps something completely different?

Thank you
Attachments

scenioaras.JPG
scenioaras.JPG [ 58.53 KiB | Viewed 17042 times ]


Originally posted by jabhatta2 on 03 Nov 2021, 13:52.
Last edited by jabhatta2 on 06 Oct 2022, 06:14, edited 1 time in total.
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Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
MartyTargetTestPrep - If it is scenario # 1 below -- I dont see how the premise (in green) supports the intermediate conclusion (in purple) in any meaningfull way.

Because my ancestors ate lot of meats --> Human beings evolved to thrive on such a diet ? The sequence doesnt make sense

If anything, it should be the other way around

i) First your body evolves to be able to thrive on much quantities of meat [human bodies first develop]
ii) Then only you start eating LOTS of meat

(Analogy : Because Humans hunt at night --> Human eyes evolved to be able to see at night)

The sequence in my analogy is backwards right ? FIRST my eyes first have to evolve to give me night vision. Then only will I start hunting at night

Reason : I wont hunt at night first if my eyes ALREADY dont have night vision.

Analogously, no human will have LARGE amounts of meat UNLESS his/her body first has the capability to thrive on large amounts of meat to begin with.

Thoughts on the backward sequence of events specifically between green premise and the purple intermediate conclusion ?
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Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
Hi avigutman - Regarding (E) - Most people are using a 'technicality' to get rid of (e) - most people are saying "healthy" is not the same thing as "Less phyiscally active"

So if E - variant had said this

Quote:
(E variant) Expressing doubts about whether most human beings today are as healthy physically active as our prehistoric ancestors were


Would (E- variant) be accurate ?

I dont think so because (E-variant) ceratinly re-inforces what Jamal said.

But i think we need a "Description" of what Jamal's response does to Sasha's claim. So things like
- Jamal's response strengthens Sasha's claim
- Jamal's response weakens Sasha's claim
- Jamal's response suggests MORE studying has to be done in order to proove Sasha's claim
- Jamal's response suggests Sasha's claim will no longer be active in 2050
.....

(E-variant) is not a "description" of what Jamal's response does to Sasha's claim - (e-variant) is just a repitition of Jamal's statement - i think even (E-variant) is wrong

Thoughts ?
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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jabhatta2 wrote:
Regarding (E) - Most people are using a 'technicality' to get rid of (e) - most people are saying "healthy" is not the same thing as "Less phyiscally active"

So if E - variant had said this

Quote:
(E variant) Expressing doubts about whether most human beings today are as healthy physically active as our prehistoric ancestors were


Would (E- variant) be accurate ?

I dont think so because (E-variant) ceratinly re-inforces what Jamal said.

But i think we need a "Description" of what Jamal's response does to Sasha's claim. So things like
- Jamal's response strengthens Sasha's claim
- Jamal's response weakens Sasha's claim
- Jamal's response suggests MORE studying has to be done in order to proove Sasha's claim
- Jamal's response suggests Sasha's claim will no longer be active in 2050
.....

(E-variant) is not a "description" of what Jamal's response does to Sasha's claim - (e-variant) is just a repitition of Jamal's statement - i think even (E-variant) is wrong

Yes, I think what you're seeing with e-variant, jabhatta2, is that it doesn't really work for a question stem asking
Quote:
Jamal responds to Sasha by doing which of the following?
Instead, e-variant is more or less quoting the response.
Additionally, I would argue that Jamal isn't expressing doubt about whether most human beings today are as physically active as our prehistoric ancestors were. Rather, Jamal is asserting that most human beings today are as physically active as our prehistoric ancestors were.
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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jabhatta2 wrote:
Because my ancestors ate lot of meats --> Human beings evolved to thrive on such a diet ? The sequence doesnt make sense

If anything, it should be the other way around

i) First your body evolves to be able to thrive on much quantities of meat [human bodies first develop]
ii) Then only you start eating LOTS of meat

(Analogy : Because Humans hunt at night --> Human eyes evolved to be able to see at night)

The sequence in my analogy is backwards right ? FIRST my eyes first have to evolve to give me night vision. Then only will I start hunting at night

Reason : I wont hunt at night first if my eyes ALREADY dont have night vision.

Analogously, no human will have LARGE amounts of meat UNLESS his/her body first has the capability to thrive on large amounts of meat to begin with.

Thoughts on the backward sequence of events specifically between green premise and the purple intermediate conclusion ?

Hi jabhatta2, this is a super interesting question. I think you're looking at evolution as if it's a process that takes place instantaneously: yesterday I had no night vision, and overnight I've evolved such that now I do have night vision.
Evolution, of course, doesn't work that way. It's a process that takes place over millions of years and countless generations, whereby genetic mutations that have an evolutionary advantage take hold and over time the prior genes die out.
So, how to think about the sentence
Quote:
Human beings undoubtedly evolved to thrive on such a diet, since our prehistoric ancestors ate large amounts of meat.

Does it make sense to say that we evolved to eat large amounts of meat because our prehistoric ancestors ate large amounts of meat? Yes, it does. Our prehistoric ancestors ate large amounts of meat: some of them were not capable of thriving on meat, and they died before they were able to procreate. Others, with some genetic mutations, did thrive on meat, so over time, and over countless generations, we are now all evolved to thrive on large amounts of meat.
Similarly, with your analogy:
jabhatta2 wrote:
Because Humans hunt at night --> Human eyes evolved to be able to see at night

Okay, let's imagine that once upon a time, human eyes weren't very good at seeing at night. Nevertheless, humans started hunting at night (why? maybe the climate made it impossible for them to hunt during the day). The humans who were completely blind in the dark didn't have much success with hunting, so they died prior to procreating. The humans who weren't quite as blind had an evolutionary advantage. Over tens of thousands of years, and thousands of generations, humans evolved to be able to see at night.
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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jabhatta2 wrote:
Hi MartyTargetTestPrep - how is Sasha's argument structured specifically.

Is it scenario # 1 in my picture below or scenario # 2 or perhaps something completely different?

Thank you

Hi jabhatta2.

Your first structure is the correct one.

We can see that it is because of the use of "since" in "Human beings undoubtedly evolved to thrive on such a diet, since our prehistoric ancestors ate large amounts of meat."

"Since" communicates that the support for "Human beings undoubtedly evolved to thrive on such a diet," is "our prehistoric ancestors ate large amounts of meat."
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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jabhatta2 wrote:
MartyTargetTestPrep - If it is scenario # 1 below -- I dont see how the premise (in green) supports the intermediate conclusion (in purple) in any meaningfull way.

Because my ancestors ate lot of meats --> Human beings evolved to thrive on such a diet ? The sequence doesnt make sense

If anything, it should be the other way around

i) First your body evolves to be able to thrive on much quantities of meat [human bodies first develop]
ii) Then only you start eating LOTS of meat

The argument doesn't really involve a sequence of events.

The point made is that THE FACT THAT "our prehistoric ancestors ate large amounts of meat" indicates that "Human beings undoubtedly evolved to thrive on such a diet."

In other words, the fact that ancestors did eat so much meat indicates that they were capable of thriving on such a diet.

That said, the construction of the argument isn't 100 percent clear. So, it's possible that some kind of sequence of events is implied. So, the question isn't written in an ideal way.
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Re: Sasha: It must be healthy to follow a diet high in animal proteins and [#permalink]
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