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

It is currently 19 Feb 2019, 20:18

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
Events & Promotions in February
PrevNext
SuMoTuWeThFrSa
272829303112
3456789
10111213141516
17181920212223
242526272812
Open Detailed Calendar
  • Free GMAT Prep Hour

     February 20, 2019

     February 20, 2019

     08:00 PM EST

     09:00 PM EST

    Strategies and techniques for approaching featured GMAT topics. Wednesday, February 20th at 8 PM EST
  • Online GMAT boot camp for FREE

     February 21, 2019

     February 21, 2019

     10:00 PM PST

     11:00 PM PST

    Kick off your 2019 GMAT prep with a free 7-day boot camp that includes free online lessons, webinars, and a full GMAT course access. Limited for the first 99 registrants! Feb. 21st until the 27th.

Carotenoids, a family of natural pigments, form an important part of

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

Hide Tags

 
Senior SC Moderator
User avatar
V
Joined: 14 Nov 2016
Posts: 1321
Location: Malaysia
GMAT ToolKit User Premium Member
Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 26 Jun 2018, 21:05
3
11
Question 1
00:00
A
B
C
D
E

based on 666 sessions

75% (02:39) correct 25% (02:54) wrong

HideShow timer Statistics

Question 2
00:00
A
B
C
D
E

based on 661 sessions

57% (01:07) correct 43% (01:17) wrong

HideShow timer Statistics

Question 3
00:00
A
B
C
D
E

based on 651 sessions

64% (00:53) correct 36% (00:58) wrong

HideShow timer Statistics

Question 4
00:00
A
B
C
D
E

based on 644 sessions

72% (01:05) correct 28% (01:20) wrong

HideShow timer Statistics

Question 5
00:00
A
B
C
D
E

based on 623 sessions

73% (01:05) correct 27% (01:23) wrong

HideShow timer Statistics

GMAT® Official Guide 2019

Practice Question
Question No.:
Online test bank question number : RC00423-01 ~ RC00423-04

Carotenoids, a family of natural pigments, form an important part of the colorful signals used by many animals. Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues. Studies of several animal species have shown that when choosing mates, females prefer males with brighter carotenoid-based coloration. Owens and Olson hypothesize that the presence of carotenoids, as signaled by coloration, would be meaningful in the context of mate selection if carotenoids were either rare or required for health. The conventional view is that carotenoids are meaningful because they are rare: healthier males can forage for more of the pigments than can their inferior counterparts. Although this may be true, there is growing evidence that carotenoids are meaningful also because they are required: they are used by the immune system and for detoxification processes that are important for maintaining health. It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females. Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems, whereas males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.


RC00423-01
1. According to the “conventional view” referred to in line 13 of the passage, brighter carotenoid-based coloration in certain species suggests that an individual

(A) lives in a habitat rich in carotenoid-bearing plants and insects
(B) has efficient detoxification processes
(C) has a superior immune system
(D) possesses superior foraging capacity
(E) is currently capable of reproducing



RC00423-02
2. The idea that carotenoid-based coloration is significant partly because carotenoids are required for health suggests that a lack of bright coloration in a male is most likely to indicate which of the following?

(A) Inefficient detoxification processes
(B) Immunity to parasite infestation
(C) Low genetic resistance to disease
(D) Lack of interest in mating
(E) Lack of carotenoid-storing tissues



RC00423-03
3. The passage suggests that relatively bright carotenoid-based coloration is a signal of which of the following characteristics in males of certain animal species?

(A) Readiness for mating behavior
(B) Ability to fight
(C) Particular feeding preferences
(D) Recovery from parasite infestation
(E) Fitness as a mate



RC00423-04
4. The passage implies which of the following about the insects from which animals acquire carotenoids?

(A) They do not produce carotenoids themselves.
(B) They use carotenoids primarily for coloration.
(C) They maintain constant levels of carotenoids in their tissues.
(D) They are unable to use carotenoids to boost their immune system.
(E) They are available in greater abundance than are carotenoid-bearing plants.



RC00423-05
5. Information in the passage suggests that which of the following is true of carotenoids that a male animal uses for detoxification processes?

(A) They were not acquired directly from plants and algae.
(B) They cannot be replenished through foraging.
(C) They cannot be used simultaneously to brighten coloration.
(D) They do not affect the animal's susceptibility to parasites.
(E) They increase the chances that the animal will be selected as a mate.



ISSUE 2223 | MAGAZINE COVER DATE: 29 January 2000

https://www.newscientist.com/article/mg16522234-300-shes-gotta-have-it/

_________________

"Be challenged at EVERY MOMENT."

“Strength doesn’t come from what you can do. It comes from overcoming the things you once thought you couldn’t.”

"Each stage of the journey is crucial to attaining new heights of knowledge."

Rules for posting in verbal forum | Please DO NOT post short answer in your post!

Advanced Search : https://gmatclub.com/forum/advanced-search/

Most Helpful Community Reply
Intern
Intern
avatar
S
Joined: 26 Apr 2017
Posts: 39
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 27 Jun 2018, 00:34
6
Thanks for the upload.

Please comment on explanations, as I managed only to complete reading comprehension in 11:11.
Passage Analysis:
Tone: Explains / Descriptive
Organization:
Describe carotenoids usage in animals - 2 schools of thoughts [go the same way].

1. Inference:
The conventional view is that carotenoids are meaningful because they are rare: healthier males can forage for more of the pigments than can their inferior counterparts.
ANS: D possesses superior foraging capacity : healthier males can forage for more of the pigments than can their inferior counterparts.

2. Inference:
Although this may be true, there is growing evidence that carotenoids are meaningful also because they are required: they are used by the immune system and for detoxification processes that are important for maintaining health.
Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems, whereas males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.
ANS: C Low genetic resistance to disease : males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.

3. Inference
Studies of several animal species have shown that when choosing mates, females prefer males with brighter carotenoid-based coloration.
ANS: E Fitness as a mate : Studies of several animal species have shown that when choosing mates, females prefer males with brighter carotenoid-based coloration.

4. Inference
Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues.
ANS: A They do not produce carotenoids themselves (obtain via POE + insect = animal, therefore if these animals / insects obtained carotenoids from plants / insects, therefore these animals / insects cannot themselves produce carotenoids) - Experts please help on Q4

5. Inference
It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females.
ANS: C They cannot be used simultaneously to brighten coloration : Because of the word OR

Kudos and constructive comments are appreciated. Thanks
General Discussion
Manager
Manager
User avatar
G
Joined: 14 Oct 2017
Posts: 247
GMAT 1: 710 Q44 V41
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 27 Jun 2018, 00:08
Question 5 is the hardest one imo:

RC00423-05
5. Information in the passage suggests that which of the following is true of carotenoids that a male animal uses for detoxification processes?

(A) They were not acquired directly from plants and algae. carotenoids can be acquired from plants or insects and we don't have any info about whether there are different uses of the carotenoids from both sources
(B) They cannot be replenished through foraging. If animals use the sources mentioned above they can replenish carotenoids
(C) They cannot be used simultaneously to brighten coloration. This is mentioned in the passage. "It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females". Yes, it says maybe, but it is the best out of all answers.
(D) They do not affect the animal's susceptibility to parasites. Carotenoids can be used to bolster the immune system, hence this answer is incorrect
(E) They increase the chances that the animal will be selected as a mate. It actually weakens the chances because carotenoids used for detoxification can't be used to increase brightness, leadiing to a higher chance of mating
_________________

My goal: 700 GMAT score - REACHED :-) | My debrief - first attempt 710 (Q44,V41,IR7)

If I could help you with my answer, consider giving me Kudos

Director
Director
User avatar
V
Joined: 06 Jan 2015
Posts: 586
Location: India
Concentration: Operations, Finance
GPA: 3.35
WE: Information Technology (Computer Software)
Premium Member
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 01 Aug 2018, 19:04
HI GMATNinja , mikemcgarry , egmat , sayantanc2k, RonPurewal , DmitryFarber , MagooshExpert (Carolyn), ccooley , GMATNinjaTwo , SarahPurewal , EMPOWERgmatVerbal

Here is the relavent part but how to infer?

Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues.

4. The passage implies which of the following about the insects from which animals acquire carotenoids?

(A) They do not produce carotenoids themselves.
(B) They use carotenoids primarily for coloration.
(C) They maintain constant levels of carotenoids in their tissues.
(D) They are unable to use carotenoids to boost their immune system.
(E) They are available in greater abundance than are carotenoid-bearing plants.
_________________

आत्मनॊ मोक्षार्थम् जगद्धिताय च

Resource: GMATPrep RCs With Solution

Manager
Manager
avatar
S
Joined: 23 Nov 2017
Posts: 119
Location: Singapore
Concentration: Strategy, Other
GMAT 1: 660 Q49 V33
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 01 Aug 2018, 19:19
1
NandishSS wrote:
HI GMATNinja , mikemcgarry , egmat , sayantanc2k, RonPurewal , DmitryFarber , MagooshExpert (Carolyn), ccooley , GMATNinjaTwo , SarahPurewal , EMPOWERgmatVerbal

Here is the relavent part but how to infer?

Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues.

4. The passage implies which of the following about the insects from which animals acquire carotenoids?

(A) They do not produce carotenoids themselves.
(B) They use carotenoids primarily for coloration.
(C) They maintain constant levels of carotenoids in their tissues.
(D) They are unable to use carotenoids to boost their immune system.
(E) They are available in greater abundance than are carotenoid-bearing plants.



I was thinking the same thing, but took clue from the information from within the brackets. Acquire directly (....that produce them) or indirectly (..eating insects). Infered that plants can produce them (animal consuming the plants that DIRECTLY produce carotenoids) and insects cannot produce carotenoids (animals acquiring carotenoids from insects, which in turn might be eating those plants, hence INDIRECTLY).

Await expert's view though.
Manager
Manager
avatar
B
Joined: 24 Mar 2018
Posts: 209
CAT Tests
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 01 Aug 2018, 21:07
In Q4 I don't understand how it is infered that the insects don't produce carotenoids themselves ?
There are 2 ways as mentioned in 2nd line via plants and animals does it mean that the animals acquired from plants
Manager
Manager
avatar
B
Joined: 24 Mar 2018
Posts: 209
CAT Tests
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 01 Aug 2018, 21:22
GMATninja2 workout broall Gnpth
Can you please explain in q4 how it is inferred ?
CR Forum Moderator
avatar
D
Joined: 25 Apr 2018
Posts: 405
Premium Member Reviews Badge CAT Tests
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 01 Aug 2018, 21:38
NandishSS wrote:
HI GMATNinja , mikemcgarry , egmat , sayantanc2k, RonPurewal , DmitryFarber , MagooshExpert (Carolyn), ccooley , GMATNinjaTwo , SarahPurewal , EMPOWERgmatVerbal

Here is the relavent part but how to infer?

Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues.

4. The passage implies which of the following about the insects from which animals acquire carotenoids?

(A) They do not produce carotenoids themselves.
(B) They use carotenoids primarily for coloration.
(C) They maintain constant levels of carotenoids in their tissues.
(D) They are unable to use carotenoids to boost their immune system.
(E) They are available in greater abundance than are carotenoid-bearing plants.


Hi NandishSS

Though not an expert, I selected A as the answer based on the below

Quote:
Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues.


This may mean that insects acquire the cartenoids by feeding on plants or algae that produce them.So, insects do not produce themselves.

IMO Option A is the best which captures this.

HTH!
_________________

Please give kudos if you found my posts helpful!

Project CR Butler - 2 CR's everyday

MBA Section Director
User avatar
V
Affiliations: GMATClub
Joined: 22 May 2017
Posts: 2097
Concentration: Nonprofit
GPA: 4
WE: Engineering (Computer Software)
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 01 Aug 2018, 21:52
1
teaserbae wrote:
GMATninja2 workout broall Gnpth
Can you please explain in q4 how it is inferred ?


teaserbae

The answer lies in the following lines

"Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues. "

Now what can we infer about the insects ?

Animals either acquire carotenoids from plant or by eating insects. These insects which come under the classification of animals again must have acquired carotenoids through plants or by eating some other insects. Hence these insects didnot produce the carotenoids themselves and that is what option A states.
_________________

Interview Debriefs | MBA Video Series | Live Decision Tracker | Follow gmat_club on Instagram

Manager
Manager
avatar
S
Joined: 29 Sep 2017
Posts: 118
Location: United States
GMAT ToolKit User Reviews Badge
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 06 Aug 2018, 15:28
NandishSS wrote:
HI GMATNinja , mikemcgarry , egmat , sayantanc2k, RonPurewal , DmitryFarber , MagooshExpert (Carolyn), ccooley , GMATNinjaTwo , SarahPurewal , EMPOWERgmatVerbal

Here is the relavent part but how to infer?

Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues.

4. The passage implies which of the following about the insects from which animals acquire carotenoids?

(A) They do not produce carotenoids themselves.
(B) They use carotenoids primarily for coloration.
(C) They maintain constant levels of carotenoids in their tissues.
(D) They are unable to use carotenoids to boost their immune system.
(E) They are available in greater abundance than are carotenoid-bearing plants.


The passage states that animals acquire through insects indirectly which means that insects acquire from somewhere else. Only A above says this.
_________________

If this helped, please give kudos!

Intern
Intern
avatar
B
Joined: 22 Jan 2018
Posts: 2
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 14 Aug 2018, 06:30
Can someone pls explain how option "E" is correct for Question 3
MBA Section Director
User avatar
V
Affiliations: GMATClub
Joined: 22 May 2017
Posts: 2097
Concentration: Nonprofit
GPA: 4
WE: Engineering (Computer Software)
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 14 Aug 2018, 07:56
1
avvbh wrote:
Can someone pls explain how option "E" is correct for Question 3


avvbh

"Studies of several animal species have shown that when choosing mates, females prefer males with brighter carotenoid-based coloration"

"Males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead."

From the above 2 lines in the paragraph, inferring option E is not difficult.
_________________

Interview Debriefs | MBA Video Series | Live Decision Tracker | Follow gmat_club on Instagram

Intern
Intern
avatar
B
Joined: 20 May 2017
Posts: 20
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 15 Aug 2018, 05:28
In Q2 I am confused between A and C. In Q3 I feel A should be the correct answer.

Posted from my mobile device
SC Moderator
User avatar
V
Joined: 23 Sep 2015
Posts: 1686
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 15 Oct 2018, 18:39
Main point - presence of C, reason for that, usefulness.

RC00423-01
resistant
1. According to the “conventional view” referred to in line 13 of the passage, brighter carotenoid-based coloration in certain species suggests that an individual

The conventional view is that carotenoids are meaningful because they are rare: healthier males can forage for more of the pigments than can their inferior counterparts

(D) possesses superior foraging capacity -

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

RC00423-02
2. The idea that carotenoid-based coloration is significant partly because carotenoids are required for health suggests that a lack of bright coloration in a male is most likely to indicate which of the following?

they are used by the immune system and for detoxification processes that are important for maintaining health.

(A) Inefficient detoxification processes -
(C) Low genetic resistance to disease -

decider - males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.

C is better than A

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

RC00423-03
3. The passage suggests that relatively bright carotenoid-based coloration is a signal of which of the following characteristics in males of certain animal species?

healthier males can forage for more of the pigments than can their inferior counterparts

was confused in following choices.

(A) Readiness for mating behavior - urgency
(E) Fitness as a mate - better choice.

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

RC00423-04
4. The passage implies which of the following about the insects from which animals acquire carotenoids?
or indirectly (by eating insects)
(A) They do not produce carotenoids themselves. - indirectly

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

RC00423-05
5. Information in the passage suggests that which of the following is true of carotenoids that a male animal uses for detoxification processes?

It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females.

(C) They cannot be used simultaneously to brighten coloration.
_________________

Thanks!
Do give some kudos.

Simple strategy:
“Once you’ve eliminated the impossible, whatever remains, however improbable, must be the truth.”

Want to improve your Score:
GMAT Ninja YouTube! Series 1| GMAT Ninja YouTube! Series 2 | How to Improve GMAT Quant from Q49 to a Perfect Q51

My Notes:
Reading comprehension | Critical Reasoning | Absolute Phrases | Subjunctive Mood

VP
VP
User avatar
D
Joined: 09 Mar 2016
Posts: 1285
Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 16 Oct 2018, 06:29
NandishSS wrote:
HI GMATNinja , mikemcgarry , egmat , sayantanc2k, RonPurewal , DmitryFarber , MagooshExpert (Carolyn), ccooley , GMATNinjaTwo , SarahPurewal , EMPOWERgmatVerbal

Here is the relavent part but how to infer?

Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues.

4. The passage implies which of the following about the insects from which animals acquire carotenoids?

(A) They do not produce carotenoids themselves.
(B) They use carotenoids primarily for coloration.
(C) They maintain constant levels of carotenoids in their tissues.
(D) They are unable to use carotenoids to boost their immune system.
(E) They are available in greater abundance than are carotenoid-bearing plants.


Hi NandishSS aplogies for my late reply :) :grin:

the answer to your question lies in the sentence below.

Animals acquire carotenoids either directly (from the plants and algae that produce them) or indirectly (by eating insects) and store them in a variety of tissues.


notice that animals get carotenoids DIRECTLY from plants ( from here you can infer that plants are carriers of carotenoids . i.e . plants produce carotenoids themselves ) OR Animals can get carotenoids INDIRECTLY from insects (from this part of sentence you can infer that insects ARE NOT CARRIERS of carotenoids. i.e. insects dont produce carotenoids themselves)

hence, (A) is correct answer :)
Senior Manager
Senior Manager
avatar
G
Joined: 27 Dec 2016
Posts: 292
CAT Tests
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 02 Feb 2019, 18:01
Hi GMATNinja,

I was wondering could you please explain why option A is incorrect for Q2? The passage states that carotenoids are used "by the immune system for detoxification processes". It is also given that "males can use scarce carotenoids either for immune defense and detoxification or for attracting females". Based on this, can't we infer that a lack of bright coloration means that the carotenoids were used by the immune system or rather the detoxification was inefficient? I understand why option C is correct because we are strictly told about this option in the last line of our paragraph; however, I am unable to see the true reasoning behind why option A is incorrect.

If you could please share your thoughts behind it, I would immensely appreciate it!
GMAT Club Verbal Expert
User avatar
P
Status: GMAT and GRE tutor
Joined: 13 Aug 2009
Posts: 2293
Location: United States
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 12 Feb 2019, 13:23
1
csaluja wrote:
Hi GMATNinja,

I was wondering could you please explain why option A is incorrect for Q2? The passage states that carotenoids are used "by the immune system for detoxification processes". It is also given that "males can use scarce carotenoids either for immune defense and detoxification or for attracting females". Based on this, can't we infer that a lack of bright coloration means that the carotenoids were used by the immune system or rather the detoxification was inefficient? I understand why option C is correct because we are strictly told about this option in the last line of our paragraph; however, I am unable to see the true reasoning behind why option A is incorrect.

If you could please share your thoughts behind it, I would immensely appreciate it!

Question 2 asks us which answer choice is most likely indicated by "a lack of bright coloration in a male" based on the idea that carotenoids are required for health.

The key to eliminating (A) is in the exact wording of the answer choice:
Quote:
(A) Inefficient detoxification processes

You are right that the passage mentions using carotenoids for detoxification processes, but what does it say about the efficiency of these processes? To answer this, look at the evidence stated in the passage:
Quote:
Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems, whereas males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.

This evidence tells us that some males have to use more carotenoids to boost their immune systems because they are more susceptible to disease and parasites. In other words, some males have to expend their carotenoids on immunity and detoxification because they are more likely to acquire a disease/parasite than other males.

What this does not tell us is how efficient the detoxification processes for either type of male is after they already acquired a disease/parasite. The drab males could have detoxification processes just as efficient as their flashy counterparts, but still use more carotenoids to boost their immunity because they are more susceptible to disease/parasites in the first place.

Because of the above reasoning, we cannot conclude that "a lack of bright coloration in a male is most likely to indicate" that those males have "inefficient detoxification processes." (A) is not the answer to question 2.

As you point out, the evidence in support of (C) is clear: the passage states that "males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead." So, we can easily infer that a lack of bright coloration indicates "low genetic resistance to disease." (C) is the correct answer.
_________________

GMAT Club Verbal Expert | GMAT/GRE tutor @ www.gmatninja.com (Now hiring!) | Instagram | Food blog | Notoriously bad at PMs

Beginners' guides to GMAT verbal
Reading Comprehension | Critical Reasoning | Sentence Correction

YouTube LIVE verbal webinars
Series 1: Fundamentals of SC & CR | Series 2: Developing a Winning GMAT Mindset

SC & CR Questions of the Day (QOTDs), featuring expert explanations
All QOTDs | Subscribe via email | RSS

Need an expert reply?
Hit the request verbal experts' reply button -- and please be specific about your question. Feel free to tag @GMATNinja in your post. Priority is always given to official GMAT questions.

Sentence Correction articles & resources
How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

Reading Comprehension, Critical Reasoning, and other articles & resources
All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for $29.99 | Time management on verbal

Senior Manager
Senior Manager
avatar
G
Joined: 27 Dec 2016
Posts: 292
CAT Tests
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 13 Feb 2019, 08:07
GMATNinja wrote:
csaluja wrote:
Hi GMATNinja,

I was wondering could you please explain why option A is incorrect for Q2? The passage states that carotenoids are used "by the immune system for detoxification processes". It is also given that "males can use scarce carotenoids either for immune defense and detoxification or for attracting females". Based on this, can't we infer that a lack of bright coloration means that the carotenoids were used by the immune system or rather the detoxification was inefficient? I understand why option C is correct because we are strictly told about this option in the last line of our paragraph; however, I am unable to see the true reasoning behind why option A is incorrect.

If you could please share your thoughts behind it, I would immensely appreciate it!

Question 2 asks us which answer choice is most likely indicated by "a lack of bright coloration in a male" based on the idea that carotenoids are required for health.

The key to eliminating (A) is in the exact wording of the answer choice:
Quote:
(A) Inefficient detoxification processes

You are right that the passage mentions using carotenoids for detoxification processes, but what does it say about the efficiency of these processes? To answer this, look at the evidence stated in the passage:
Quote:
Males that are more susceptible to disease and parasites will have to use their carotenoids to boost their immune systems, whereas males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead.

This evidence tells us that some males have to use more carotenoids to boost their immune systems because they are more susceptible to disease and parasites. In other words, some males have to expend their carotenoids on immunity and detoxification because they are more likely to acquire a disease/parasite than other males.

What this does not tell us is how efficient the detoxification processes for either type of male is after they already acquired a disease/parasite. The drab males could have detoxification processes just as efficient as their flashy counterparts, but still use more carotenoids to boost their immunity because they are more susceptible to disease/parasites in the first place.

Because of the above reasoning, we cannot conclude that "a lack of bright coloration in a male is most likely to indicate" that those males have "inefficient detoxification processes." (A) is not the answer to question 2.

As you point out, the evidence in support of (C) is clear: the passage states that "males that are genetically resistant will use fewer carotenoids for fighting disease and will advertise this by using the pigments for flashy display instead." So, we can easily infer that a lack of bright coloration indicates "low genetic resistance to disease." (C) is the correct answer.


Beautiful explanation. Thank you very much GMATNinja!
Manager
Manager
avatar
B
Joined: 17 Jun 2018
Posts: 52
Location: India
Schools: IMD '20
GPA: 2.84
WE: Engineering (Consulting)
Re: Carotenoids, a family of natural pigments, form an important part of  [#permalink]

Show Tags

New post 13 Feb 2019, 11:10
workout in Q-3 how do I distinguish b/w options A and E ?
GMAT Club Bot
Re: Carotenoids, a family of natural pigments, form an important part of   [#permalink] 13 Feb 2019, 11:10
Display posts from previous: Sort by

Carotenoids, a family of natural pigments, form an important part of

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


Copyright

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®.