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A detailed lab analysis of a meteorite recently discovered

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A detailed lab analysis of a meteorite recently discovered [#permalink] New post 11 May 2011, 01:28
00:00
A
B
C
D
E

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  25% (medium)

Question Stats:

66% (02:27) correct 34% (01:33) wrong based on 59 sessions
A detailed lab analysis of a meteorite recently discovered in Antarctica revealed that the meteorite has geological characteristics common to the planet Mars. To date, scientists have not found these characteristics anywhere other than on Mars.using a technique called "acid-etching" scientist found that the meteorite contained fossilized remains of single-cell life forms.

The statement above, if true, best support which of the following as a conclusion?

a) The fossilized remains indicate that life exists on Mar
b) The scientists have evidence to support a hypothesis that the meteorite came from mars.
c) The meteorite represents a substantial step forward in human knowledge of the development of life in the solar system.
d) undiscovered meteorites currently exist in Antarctica
e) "Acid - etching" is necessary to confirm the existence of fossilized remains in meteorites.
[Reveal] Spoiler:
I marked a
which is wrong
explanation is saying a is extreme but from premises cant we conclude that life existed on mars.


Pls comment
[Reveal] Spoiler: OA

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Re: How option a is extreme [#permalink] New post 11 May 2011, 03:27
I think there is a difference between 'life form' and 'single -cell life form'
For me it was a choice between B and E.
B is a better answer.
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Re: How option a is extreme [#permalink] New post 11 May 2011, 03:47
"A detailed lab analysis of a meteorite recently discovered in Antarctica revealed that the meteorite has geological characteristics common to the planet Mars. To date, scientists have not found these characteristics anywhere other than on Mars."
Meteorite discovered in Antarctica -> Meteorite has geological characteristics common in Mars -> scientists have not seen such characteristics anywhere else other than Mars

Are the scientists in agreement that the meteorite definitely belongs to mars? i think not
it MAY have been from Mars, at least that's what the evidence suggests.

"using a technique called "acid-etching" scientist found that the meteorite contained fossilized remains of single-cell life forms."
The premise never says that the fossilized remains were part meteorite before it hit earth.Maybe the life form was originally from earth and later got fossilized on the rock. he test ONLY confirms the presence of life form on the meteorite.

Option A does look a bit extreme imo.
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Re: How option a is extreme [#permalink] New post 11 May 2011, 04:54
A detailed lab analysis of a meteorite recently discovered in Antarctica revealed that the meteorite has geological characteristics common to the planet Mars. To date, scientists have not found these characteristics anywhere other than on Mars.using a technique called "acid-etching" scientist found that the meteorite contained fossilized remains of single-cell life forms.

The statement above, if true, best support which of the following as a conclusion?

a) The fossilized remains indicate that life exists on Mars
The remains of single-cell life forms were found. That doesn't substantiate the idea that life currently exists on Mars. We find dinosaur fossils here on Earth, but no dinosaurs exist today.
b)The scientists have evidence to support a hypothesis that the meteorite came from mars.
The geological characteristics found in the meteorite are common to the geology of Mars. Scientist have only found these characteristics on Mars, so this is enough evidence to support the hypothesis.
c) The meteorite represents a substantial step forward in human knowledge of the development of life in the solar system.Totally out of the scope of the argument.
d) undiscovered meteorites currently exist in Antarctica
They could exist anywhere in the world.
e) "Acid - etching" is necessary to confirm the existence of fossilized remains in meteorites.
This is just one process that scientists use to further examine the meteorite. There could be many other processes that aren't mentioned.

B is the correct answer
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Re: How option a is extreme [#permalink] New post 11 May 2011, 13:17
Its possible that single cell life form was deposited after meteorite landed in antartica. Only thing scientist can hypothise is that probably meteor came from Mars. So B
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Re: How option a is extreme [#permalink] New post 12 May 2011, 02:55
Between B and E,E is too strong.
B prevails.
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Re: How option a is extreme [#permalink] New post 10 Aug 2011, 02:09
I agree that A is too strong. However, if we choose B, the conclusion has nothing to do with the last phrase "using a technique called "acid-etching" scientist found that the meteorite contained fossilized remains of single-cell life forms." Hence, I think that the reasoning is not very logic.

Can anyone explain me?
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Re: How option a is extreme [#permalink] New post 10 Aug 2011, 02:35
TrueLie wrote:
I agree that A is too strong. However, if we choose B, the conclusion has nothing to do with the last phrase "using a technique called "acid-etching" scientist found that the meteorite contained fossilized remains of single-cell life forms." Hence, I think that the reasoning is not very logic.

Can anyone explain me?


You are right, it doesn't follow a chain of logic. This is more a series of facts.

For example:
"Tim likes blue things. The car is blue. The house is red"

What is a possible conclusion here? Need it involve the last fact? No.

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Re: How option a is extreme [#permalink] New post 10 Aug 2011, 05:50
+1 for B..
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Re: How option a is extreme [#permalink] New post 10 Aug 2011, 07:23
+1 for B.

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Re: How option a is extreme [#permalink] New post 10 Aug 2011, 09:12
+1 B
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Re: A detailed lab analysis of a meteorite recently discovered [#permalink] New post 26 Dec 2011, 20:09
Straight B.
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Re: A detailed lab analysis of a meteorite recently discovered [#permalink] New post 26 Dec 2011, 20:28
a) The fossilized remains indicate that life exists on Mar
-- fossil remains means there was once life, and nothing else.
b) The scientists have evidence to support a hypothesis that the meteorite came from mars.
-- Correct!
c) The meteorite represents a substantial step forward in human knowledge of the development of life in the solar system.
-- this cant be said, 'Shell building', hence wrong.
d) undiscovered meteorites currently exist in Antarctica
-- cant be said, they only found one.
e) "Acid - etching" is necessary to confirm the existence of fossilized remains in meteorites.
-- others may also exist.
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Re: A detailed lab analysis of a meteorite recently discovered [#permalink] New post 27 Dec 2011, 09:40
+1 B.
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Re: A detailed lab analysis of a meteorite recently discovered [#permalink] New post 27 Dec 2011, 18:12
IMO B
If you choose A, you must assume that the fossil remains found in this meteorite actually didn't attack to this meteorite after it travel to the earth.
Re: A detailed lab analysis of a meteorite recently discovered   [#permalink] 27 Dec 2011, 18:12
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