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24 Feb 2026, 22:06
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
76% (01:31) correct
24%
(01:50)
wrong
based on 88
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In flightless birds, such as penguins and ostriches, the primary purpose of feathers is to preserve body heat. The feathers are effective in preserving body heat because birds are exothermic, meaning they produce their own heat. For this reason, evolutionary biologists insist that the recent discovery of fossils of prehistoric raptors, who had similar feathers, is evidence that at least some raptors were exothermic.
In the passage, the author develops the argument by
A) reaching a conclusion about an unknown phenomenon by drawing an analogy between it and a known phenomenon
B) providing a new interpretation of evidence once cited in support of an earlier hypothesis
C) putting together the theory that most completely explains several pieces of evidence that seem to oppose one another
D) theorizing about how the biological processes of today’s organisms may have developed from certain biological processes of their prehistoric ancestors
E) highlighting the differences between the environments of today’s flightless birds and those of prehistoric raptors
In the passage, the author develops the argument by
A) reaching a conclusion about an unknown phenomenon by drawing an analogy between it and a known phenomenon
B) providing a new interpretation of evidence once cited in support of an earlier hypothesis
C) putting together the theory that most completely explains several pieces of evidence that seem to oppose one another
D) theorizing about how the biological processes of today’s organisms may have developed from certain biological processes of their prehistoric ancestors
E) highlighting the differences between the environments of today’s flightless birds and those of prehistoric raptors
24 Feb 2026, 22:51
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Isnt exothermic releasing heat and not preserving heat?
Bunuel am I mistaken there?
Either way I think option A and the rest does not convey what the stem says at all.
Other options:
Option B: No new "Interpretation" at all. The stem is not finding an alternate viewpoint of things rather deriving one thing from another.
Option C: There is no evidence opposing one another
Option D: Yes but that is not what the argument is about. The argument is framed such that if X-->Y then since Y exists thus X is the conclusion.
Option E: No differences shown
Answer: Option A
Bunuel am I mistaken there?
Either way I think option A and the rest does not convey what the stem says at all.
Other options:
Option B: No new "Interpretation" at all. The stem is not finding an alternate viewpoint of things rather deriving one thing from another.
Option C: There is no evidence opposing one another
Option D: Yes but that is not what the argument is about. The argument is framed such that if X-->Y then since Y exists thus X is the conclusion.
Option E: No differences shown
Answer: Option A
ExpertsGlobal5
25 Feb 2026, 02:29
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From the para, we know that the author has drawn an analogy from the current phase of a bird with that of its ancestors and accordingly came onto a conclusion that at least some raptors were exothermic.
We have to look for an option on the similar lines.
A) reaching a conclusion about an unknown phenomenon by drawing an analogy between it and a known phenomenon
Exactly. As stated above, this option is the similar lines as we pre-assumed. Option A
B) providing a new interpretation of evidence once cited in support of an earlier hypothesis
It is true that it is a new interpretation of evidence. However, the para doesn't discuss anything about some earlier hypothesis, let alone in its support. Rejected.
C) putting together the theory that most completely explains several pieces of evidence that seem to oppose one another
The para doesn't mention anything that we can infer from they are opposed to one another. Rejected.
D) theorizing about how the biological processes of today’s organisms may have developed from certain biological processes of their prehistoric ancestors
This one's tempting. It states that the author is theorizing something about today's organism based on their ancestor's biological process. However, it's quite the opposite. In the para it says X→Y and in this option it says Y→X. Hence, Rejected.
E) highlighting the differences between the environments of today’s flightless birds and those of prehistoric raptors
There's no mention of the difference's between the two. It's actually on the basis of analogy, author has tried to find the similarities here. Rejected.
We have to look for an option on the similar lines.
A) reaching a conclusion about an unknown phenomenon by drawing an analogy between it and a known phenomenon
Exactly. As stated above, this option is the similar lines as we pre-assumed. Option A
B) providing a new interpretation of evidence once cited in support of an earlier hypothesis
It is true that it is a new interpretation of evidence. However, the para doesn't discuss anything about some earlier hypothesis, let alone in its support. Rejected.
C) putting together the theory that most completely explains several pieces of evidence that seem to oppose one another
The para doesn't mention anything that we can infer from they are opposed to one another. Rejected.
D) theorizing about how the biological processes of today’s organisms may have developed from certain biological processes of their prehistoric ancestors
This one's tempting. It states that the author is theorizing something about today's organism based on their ancestor's biological process. However, it's quite the opposite. In the para it says X→Y and in this option it says Y→X. Hence, Rejected.
E) highlighting the differences between the environments of today’s flightless birds and those of prehistoric raptors
There's no mention of the difference's between the two. It's actually on the basis of analogy, author has tried to find the similarities here. Rejected.
ExpertsGlobal5
