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Hi guys,
I am struggling a lot with the HARD CR question typically all questions above the 655 level. I am not able to figure out a strategy to fix this. Any suggestions, study material or tips would be really helpful.

Critical Reasoning Butler: July 2024
July 3	CR 1	CR 2

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hello everyone , I am actually stuck with a particular RC question could anyone provide me the proper explanation for the same

Thomas Henry Huxley (1825−1895), one of Charles Darwin’s earliest and most staunch defenders, as well as an influential naturalist in his own right, first observed the many similarities between reptiles and birds. Huxley noted, for example, that the wings of a bird hid reptilian fingers. Today, few scientists challenge not only the link between birds and reptiles in general, but between birds and theropods, a group of bipedal saurischian dinosaurs. Hundreds of structural similarities exist, including elongated arms, large eye openings, swiveling wrists, three forward-facing toes, and hollow bones.

The most diverse theropod group is the coelurosaurs, a carnivorous bipedal group that includes the Tyrannosaurus rex and the Velociraptor, the latter of which is quite similar to the oldest known bird, the Archaeopteryx. Coelurosauria, in fact, is the clade that contains all theropods more closely related to birds than to carnosaurs, and all coelurosaurs have been thought to possess feathers.

However, a recent find of what seems to be an entirely new—and apparently featherless—coelurosaur has complicated the subject. Several suggestions have been made as to why this particular chicken-sized dinosaur from the Late Jurassic period lacked feathers.

One possibility is that, in some creatures, feathers were replaced by scales because the feathers were not needed for warmth, recognition of family members, or mating rituals—uses that feathers were thought to have had for dinosaurs that did not fly. It is also possible that some coelurosaurs had feathers in only certain geographic areas. Another idea is that this particular coelurosaur was so young that it had not yet grown feathers.

A more fundamentally profound alternative is that, contrary to conventional scientific thought, birds and feathered dinosaurs developed feathers independently of each other rather than from a common ancestor. This would certainly not be the first case of what is known as convergent evolution. Fish and certain mammals can swim,but have evolved this attribute separately. Likewise, insects have wings, but developed them independently from birds. Luckily, the new fossil of what has been named a Juravenator is well-preserved almost in its entirety. More insights into why it did not have feathers will likely lead to new insights into how other animals did develop this trait.

this is the passage

3. According to the passage, feathers on dinosaurs .

(A) were not used for flight
(B) were not always present at birth
(C) were first noted by Huxley
(D) might have evolved from scales
(E) were a characteristic of all coelurosaurs

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That question is discussed here:

https://gmatclub.com/forum/thomas-henry ... 75292.html

according to the answer given : it says that feathers might have evolved from scale (i.e D)

OA to question 3 doesn’t seem right.

3. According to the passage, feathers on dinosaurs .
(A) were not used for flight
(B) were not always present at birth
(C) were first noted by Huxley
(D) might have evolved from scales
(E) were a characteristic of all coelurosaurs

OA - D while the passage says quite the opposite : One possibility is that, in some creatures, feathers were replaced by scales

instead option B fits perfectly based on this line : Another idea is that this particular coelurosaur was so young that it had not yet grown
feathers.

i agree with this but no explanation given to clear these thought

D )might have evolved from scales Perhaps: scope is her - "One possibility is that, in some creatures, feathers were replaced by scales because the feathers were not needed for warmth, recognition of family members, or mating rituals—uses that feathers were thought to have had for dinosaurs that did not fly." ( this explanation doesn’t makes sense)

would surely be waiting for a response!!!

hey
does anyone find LSAT RC more difficult than OG?

Hi! Answer option (B) says were not always present at birth. The word ’always’ is the dealbreaker here. The question, by the way, is about dinosaurs in general. So, your explanation regarding coelurosaur is not fitting. There are no clues in the passage that tell us feathers on dinosaurs were not ALWAYS present at birth.

(D) is a safer option because it used the word ’might’. The passage says: One possibility is that, in some creatures, feathers were replaced by scales because the feathers were not needed for warmth, recognition of family members, or mating rituals—uses that feathers were thought to have had for dinosaurs that did not fly. Feathers were replaced by scales means feathers were present first and then from feathers scales came into being. This idea matches what we have in option (D).

(D) is a safer option because it uses the word ’might’. The passage says: One possibility is that, in some creatures, feathers were replaced by scales because the feathers were not needed for warmth, recognition of family members, or mating rituals—uses that feathers were thought to have had for dinosaurs that did not fly. Feathers were replaced by scales means feathers were present first and then from feathers scales came into being. This idea matches what we have in option (D).

Critical Reasoning Butler: July 2024
July 4	CR 1	CR 2

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QUESTION OF THE DAY | CR | GMAT/GRE -> the-blue-eared-slider-dwells-only-in-slow-moving-streams-432072.html#p3418307

Critical Reasoning Butler: July 2024
July 5	CR 1	CR 2

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Hey, where can we find CR Butler questions for the month of April/May?

 
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Any group for RC ?

Any strategies to improve accuracy in RC?

I’ve continuously missed questions whenever I don’t refer back to the passage - esp for inference questions

and if you’ve some time till your attempt, then just pick up some good books - also helps:)