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"Such a finding lends credence to the theory that calling is an honest and reliable indicator of genetic quality."

The last line says that the mating calls are reliable indicators of genetic quality.
Q3 ans choice C : C. A male that exhibits a demonstrably shorter mating call is probably also betraying its physical inadequacy.

if a male is exibiting shorter calls then it is possible that the frog is not genetically stronger . where does "betraying its adequacy" come from?? also we are only given that females prefer stronger males but do we KNOW IN FACT that the weaker males dont mate?? I do not think "betraying their physical adequacy" is really an answer. It is an emotional inference. I would like to read the OE . IF the ans choice would have said that the "frog that exhibit short calls are not genetically stronger" this would be a right inference...but saying "BETRAYING their adequacy" is like a judgement and not GMAT STANDARD inference

aragonn Abhishek009 DmitryFarber SaraiGMAT VeritasPrepBrian @anairamitch
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faltan
5.5 mins, all true. Sometimes, reading the passage thoroughly works fine however for some passages I get lost if I insist on reading it thoroughly. This was one of the former. I don't know how to approach in general.

Used to suffer with the same issue for months, somehow the eGMAT 7 key reading strategies for RC works perfectly, try it once, it may help you a bit...
In addition a link for the same.
https://e-gmat.com/blogs/gmat-reading-c ... eo-lesson/
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AdityaHongunti
"Such a finding lends credence to the theory that calling is an honest and reliable indicator of genetic quality."

The last line says that the mating calls are reliable indicators of genetic quality.
Q3 ans choice C : C. A male that exhibits a demonstrably shorter mating call is probably also betraying its physical inadequacy.

if a male is exibiting shorter calls then it is possible that the frog is not genetically stronger . where does "betraying its adequacy" come from?? also we are only given that females prefer stronger males but do we KNOW IN FACT that the weaker males dont mate?? I do not think "betraying their physical adequacy" is really an answer. It is an emotional inference. I would like to read the OE . IF the ans choice would have said that the "frog that exhibit short calls are not genetically stronger" this would be a right inference...but saying "BETRAYING their adequacy" is like a judgement and not GMAT STANDARD inference

aragonn Abhishek009 DmitryFarber SaraiGMAT VeritasPrepBrian @anairamitch

Dear AdityaHongunti

I guess you are having difficulty comprehending the highlighted word

1. Betray = To reveal unconsciously (something one would preferably conceal) {Meaning as per Dictionary.com }
2. Inadequacy = The state or condition of being inadequate; insufficiency. {Meaning as per Dictionary.com }

Thus option (C) suggests that

A male that exhibits a demonstrably shorter mating call is probably also betraying (unconsciously revealing) its physical inadequacy.

Check paragraph 2, the following part hints the same -

Quote:
gray tree frog Females have been shown to gravitate toward males whose calls last longest, and it has long been theorized that a male's lengthy mating call is linked to superior fitness and energy.


Hope this helps now, if you are not sure about the correct Option the alternate strategy might be POE Approach...
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Abhishek009 , thankyou for your response
Please explain how is the frog "betraying it's adequacy" ?
The passage states that all the frog make sounds but females prefer longer calls.
Then the passage states that the long call is not a sexual prowess but a genetic ability
The passage later concludes that the calls are indicative of genetic superiority.

But "betraying the adequacy" is a judgment , I mean it is like saying "you are kidding your self"

Betray meaning as far as I know
: to be false to; to deceive ; to break someone's trust ; to be untruthful

A is more convincing
Reasons :
1) " Within most animal species, the males must do their best to attract females by showing off-by attempting either to demonstrate sexual prowess or to intimidate rivals. A new study, however, suggests that males are actually submitting to a more genetic imperative"
-This tells us that the frogs are not actually displaying their sexual prowess (current belief) but are genetically inclined to do so...

2)the entire passage then supports the implication provided by the study . The research states that the frogs were actually genetically stronger and that is why some exhibit longer calls.

Option A: It is now no longer prudent to assume that the length of a frog's mating call is linked to its sexual prowess.
- prudent: wise/ sound; it is not wise to assume that length is actually a sexually prowess ,but it is a genetic phenomenon.

Please correct my reasoning .thankyou

Posted from my mobile device
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Took 6:34 min in total including 3:15 min to read the passage!

Passage Map:


1) New Theory
2) Study about frogs. 2 reasons for choosing frogs
3) Results of the study supporting the new theory
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Got the last one wrong. Good passage but not a fan of the answer choices in the last question. If you don't interpret Choice C the correct way, you may think the answer choice is not supported by the passage. I chose A (best of the worst). Don't see such a question appearing on the GMAT regarding the intricacy of the last sentence of the passage. Not clear enough to get to answer choice C. Had C been re-worded, perhaps it may have been easier to spot. Just my opinion but would appreciate others' inputs.
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question 3 explanation sajjad
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question 3 explanation sajjad

Explanation

3. The passage suggests which of the following about the male tree frog?

Difficulty Level: 700+

Explanation

The passage explains that female tree frogs are attracted to males whose mating calls last the longest, and it has been theorized that a male's lengthy mating call is linked to superior fitness and energy. This suggests that the males' mating calls serve as a way to demonstrate their genetic superiority to potential mates.

Additionally, the experiment conducted by biologists at the University of Missouri supports the idea that calling is an honest and reliable indicator of genetic quality. The experiment involved fertilizing eggs with sperm from two different males—one with a long-calling mating call and another with a shorter call. The results showed that the offspring of long-calling males grew into faster and stronger tadpoles compared to the offspring of short-calling males. This indicates a correlation between the length of the mating call and the physical characteristics and development of the offspring.

Based on this information, we can conclude that the passage suggests the following about the male tree frog:

C. A male that exhibits a demonstrably shorter mating call is probably also betraying its physical inadequacy.

The passage does not provide any information to support the other answer choices:

A. It is now no longer prudent to assume that the length of a frog's mating call is linked to its sexual prowess.
(The passage actually supports the link between mating call length and genetic quality.)

B. Some females are attracted to long-calling males because of the quality of "parenting" that these males can provide.
(The passage explicitly states that male tree frogs are uninvolved in raising their offspring.)

D. A study comparing tadpoles with the same father but different mothers would yield similar results.
(The passage does not mention or provide any information about studying tadpoles with different mothers.)

E. A frog that is unable to sound a mating call will never reproduce.
(The passage does not provide any information about the reproductive capabilities of frogs that are unable to sound a mating call.)

Therefore, the correct answer is C.
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