GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 18 Aug 2018, 21:16

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Two paleontologists, Dr Tyson and Dr. Rees, disagree over

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Manager
Manager
avatar
Joined: 04 Jan 2014
Posts: 92
GMAT ToolKit User
Re: Two paleontologists, Dr Tyson and Dr. Rees, disagree over  [#permalink]

Show Tags

New post 08 Apr 2015, 05:55
1
Tyson claims they are clearly early hominid footprints since they show human characteristics: "a squarish heel and a big toe immediately adjacent to the next toe."

(B) Certain species of bears had feet very like human feet, except that the "outside toe on each foot was the biggest toe and the innermost toe was the smallest toe."
Even Bear has what Tyson explained. But Tyson's explanation dint have the other char of bear foot print.. Weakens the conclusion. Hence the answer..
Verbal Forum Moderator
User avatar
V
Status: Greatness begins beyond your comfort zone
Joined: 08 Dec 2013
Posts: 2109
Location: India
Concentration: General Management, Strategy
Schools: Kelley '20, ISB '19
GPA: 3.2
WE: Information Technology (Consulting)
GMAT ToolKit User Reviews Badge CAT Tests
Re: Two paleontologists, Dr Tyson and Dr. Rees, disagree over  [#permalink]

Show Tags

New post 15 Dec 2017, 00:56
noboru wrote:
Two paleontologists, Dr Tyson and Dr. Rees, disagree over the interpretation of certain footprints that were left among other footprints in hardened volcanic ash at site G. Dr. Tyson claims they are clearly early hominid footprints since they show human characteristics: a squarish heel and a big toe immediately adjacent to the next toe. However, since the footprints indicate that if hominids made those prints they would have had to walk in an unexpected cross-stepping manner, by placing the left foot to the right of the right foot. Dr. Rees rejects Dr. Tyson’s conclusion.

Which one of the following, if true, most seriously undermines Dr. Tyson’s conclusion?

(A) The foot prints showing human characteristics were clearly those of at least two distinct individuals.

(B) Certain species of bears had feet very like human feet, except that the outside toe on each foot was the biggest toe and the innermost toe was the smallest toe.

(C) Footprints shaped like a human’s that do not show a cross-stepping pattern exist at site M, which is a mile away from site G, and the two sets of footprints are contemporaneous.

(D) When the moist volcanic ash became sealed under additional layers of ash before hardening, some details of some of the footprints were erased.

(E) Most of the other footprints at site G were of animals with hooves.

Source: LSAT


the reason (D) is incorrect is that neither paleontologist weighs in on the issue of how much evidence you need to support a conclusion. That is, the disagreement is about what can be inferred from the evidence, not about whether there is enough evidence to draw any conclusion.

B-->, we have to make sure we understand the evidence brought up in the stimulus. It appears that the footprints discovered, though similar in shape to humans', differs in an important way: the "left" foot is on the right, and the "right" foot is on the left. As Dr. Rees says, for hominids to make those footprints, they would have to walk in a bizarre cross-stepping pattern.

Now if it turns out that a certain species of bear has footprints very similar to humans', except the order of the toes is reversed, then those bears would leave footprints just like the ones in question. (Look at your feet. If your big toe and little toe switched places, your right foot would look more like a left foot, and vice versa.) So if (B) is true, then it's much more likely that the footprints were left by bears than by early hominids, so Dr. Tyson's conclusion is weakened.
_________________

When everything seems to be going against you, remember that the airplane takes off against the wind, not with it. - Henry Ford
The Moment You Think About Giving Up, Think Of The Reason Why You Held On So Long
+1 Kudos if you find this post helpful

BSchool Forum Moderator
User avatar
D
Joined: 28 Mar 2017
Posts: 1102
Location: India
GMAT 1: 730 Q49 V41
GPA: 4
CAT Tests
Re: Two paleontologists, Dr Tyson and Dr. Rees, disagree over  [#permalink]

Show Tags

New post 15 Dec 2017, 14:37
Two paleontologists, Dr Tyson and Dr. Rees, disagree over the interpretation of certain footprints that were left among other footprints in hardened volcanic ash at site G. Dr. Tyson claims they are clearly early hominid footprints since they show human characteristics: a squarish heel and a big toe immediately adjacent to the next toe. However, since the footprints indicate that if hominids made those prints they would have had to walk in an unexpected cross-stepping manner, by placing the left foot to the right of the right foot. Dr. Rees rejects Dr. Tyson’s conclusion.

Which one of the following, if true, most seriously undermines Dr. Tyson’s conclusion?

(A) The foot prints showing human characteristics were clearly those of at least two distinct individuals. -This strengthens the argument on Tyson.

(B) Certain species of bears had feet very like human feet, except that the outside toe on each foot was the biggest toe and the innermost toe was the smallest toe. -Correct

(C) Footprints shaped like a human’s that do not show a cross-stepping pattern exist at site M, which is a mile away from site G, and the two sets of footprints are contemporaneous. -This slightly strengthens the argument

(D) When the moist volcanic ash became sealed under additional layers of ash before hardening, some details of some of the footprints were erased. -But, still from the pattern we can end up stating that the prints were of human. This doesn't exactly weaken the argument. B is better than this option

(E) Most of the other footprints at site G were of animals with hooves. -So?
_________________

Kudos if my post helps!

Long And A Fruitful Journey - V21 to V41; If I can, So Can You!!


Preparing for RC my way


My study resources:
1. Useful Formulae, Concepts and Tricks-Quant
2. e-GMAT's ALL SC Compilation
3. LSAT RC compilation
4. Actual LSAT CR collection by Broal
5. QOTD RC (Carcass)
6. Challange OG RC
7. GMAT Prep Challenge RC

Re: Two paleontologists, Dr Tyson and Dr. Rees, disagree over &nbs [#permalink] 15 Dec 2017, 14:37

Go to page   Previous    1   2   [ 23 posts ] 

Display posts from previous: Sort by

Two paleontologists, Dr Tyson and Dr. Rees, disagree over

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.