Cliffs AP Biology question

Started by jmcunnin
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jmcunnin

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I was looking at the 3rd edition of cliffs..I see two versions. One has a cd rom and the other doesn't. Any difference between the two versions besides the extra tests on the cd rom?

Thanks!
 
I had the same question. It seems the CD-ROM version was published in 2009 while the regular one was published in 2007. I'm not sure if they added any actual material between the two versions.