which book to use?

[max_wannelius]

i am taking bio I next semester. my school uses campbell-reece 7th edition. is it possible for me to use an older version?

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[Anastasis]

i am taking bio I next semester. my school uses campbell-reece 7th edition. is it possible for me to use an older version?

You'd be better off asking your prof that but there isn't a huge difference in editions if that's what you mean.