Critical Reasoning (CR) | Because dinosaurs were reptiles, scientists once assumed that, like al

 

­The researchers have concluded thefollowing:

at least some dinosaurs might have beenwarm-blooded

The support for their conclusion is thefollowing:

The recent discovery of dinosaur fossils in the northernarctic

and

only warm-blooded animals could have withstood the frigid temperatures that are characteristic of arcticwinters

Notice that the "frigid temperatures" that only warm-blooded animals could have withstood are "characteristic of arctic winters."

Now, here's choice(D):

(D) The number of fossils found together indicates herds of dinosaurs so large that they would need to migrate to find a continual foodsupply.

Notice that what choice (D) says is basically that the dinosuaurs in question migrated regularly.

So, what does that information mean to us? It means that the dinosaurs may have been in the arctic but may not have been
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Statistics : Posted by MartyMurray • on 10 Mar 2005, 19:51 • Replies 10 • Views 13753

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