Critical Reasoning (CR) | Re: Over the last century, paleontologists have used small differences bet

Understanding the argument - we need to bolster the conclusion, which is "This classification is unjustified."

Option Elimination -

(A) Not every species that lived in a given area is preserved as a fossil. - out of scope.

(B) At least one individual of every true species of triceratops has been discovered as a fossil specimen. Out of scope

(C) No geographical area ever supports more than three similar species at the same time. - perfect. It can't be 11 then.

(D) In many species, individuals display quite marked variation. - We are concerned about these 16, which have small differences between fossil specimens - out of scope.

(E) Differences between fossil specimens of triceratops that came from the same area are no less distinctive than differences between specimens that came from different areas. - At best, it weakens the conclusion. As it goes in the direction of establishing the credibility of these specimens and their classification.

Statistics : Posted by Raman109 • on 11 Aug 2009, 19:49 • Replies 25 • Views 29414

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