Change my major?

<p>I got accepted to ucsb in pre-chem and they told me i could finish up my pre reqs there however I originally applied as a Bio major and have most of the pre reqs done. </p>

<p>If I go in as a chem major ill be missing 9 pre preqs... </p>

<p>Should I change majors? The only thing they're offering me is biochem and in that field ill only be missing 5 pre reqs. But whats the difference between biochem and Chem? And which is better for Pre med?</p>

<p>Also whats the difference between a BA and a BS? I noticed there’s less pre reqs for the BA in chem. Is that easier ?</p>