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# Based on the growth rates of large modern reptiles such as

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Director
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Based on the growth rates of large modern reptiles such as [#permalink]

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15 Sep 2005, 08:13
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Based on the growth rates of large modern reptiles such as the Galapagos tortoise and examinations of fossils of juvenile dinosaurs, scientists estimate that the largest dinosaurs probably lived to be between 100 and 200 years old.

(A) Based on the growth rates of large modern reptiles such as
(B) On the basis of growth rates of large modern reptiles such as
(C) Based on the growth rates of large modern reptiles like
(D) On the basis of growth rates of large modern reptiles, like those of
(E) Based on such growth rates as those of large modern reptiles like

Why not A?
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15 Sep 2005, 09:30
"such as" is correct here over "like" as "the Galapagos tortoise" is mentioned as example.
This leaves A & B.

A says:
Based on A & B, scientists estimate that....

B says:
On the basis of A & B, scientists estimate that....

because of "estimate" word in main clause, i would chose B. Any more formal explanation? anyone?
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15 Sep 2005, 10:41
I like B.

The modifier "Based on..." cannot modify scientists. They are not based on growth rates. Such as is used for examples.
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15 Sep 2005, 11:19
I would pick B here. Why, well, I don't see anything wrong with A grammatically but here we have a more stylish descion to make.

There are 2 things that scientists have to consider
B suggests a more neutral consideration between the two.
On the basis of X and Y., scientists......
A does emphasise the first alternative...

Based on X ...........and y,,,scientists....

There's a stylish difference here....it's hard to explain but that's why I chose B instead of A.
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15 Sep 2005, 16:44
You can't use "like" here because "like" indicates a similarity. Galapagos tortoises aren't similar to large modern reptiles....THEY ARE LARGE MODERN REPTILES!!!

So, C and E are out.

D and A are wrong because both include "examinations of fossils of juvenile dinosaurs" as examples of large modern reptiles, which they obviously aren't.

So, B by POE.
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15 Sep 2005, 16:55
popew626 wrote:
D and A are wrong because both include "examinations of fossils of juvenile dinosaurs" as examples of large modern reptiles, which they obviously aren't.

By your reasoning, B also makes the same allusion as A and D. Doesn't it?

My logic:
I can understand the distinction bet. such as and like. But, does such as give examples for large modern reptiles or does it refer to the lifespans of large modern reptiles...
If I go with the latter, then D sounds a little better than others.
Someone care to explain?
Thanks
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15 Sep 2005, 17:04
anandsebastin wrote:
popew626 wrote:
D and A are wrong because both include "examinations of fossils of juvenile dinosaurs" as examples of large modern reptiles, which they obviously aren't.

By your reasoning, B also makes the same allusion as A and D. Doesn't it?

My logic:
I can understand the distinction bet. such as and like. But, does such as give examples for large modern reptiles or does it refer to the lifespans of large modern reptiles...
If I go with the latter, then D sounds a little better than others.
Someone care to explain?
Thanks

Nope. B is different.

B starts with "on the basis of" You can from there separate the two pieces of evidence that the author is using.

A and D don't do that.

A says BASED ON THE GROWTH RATES OF anything that comes after that must be the similar whether using animals or bacteria as an example.

In D, the comma is used to put a modifying phrase in the sentence. As I said before, examinations of fossils of juvenile dinosaurs isn't a large modern reptile so this sentence is illogical.
15 Sep 2005, 17:04
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