SAT II admission

<p>Hi. I am having second thoughts about taking the SAT II Chemistry this Saturday, because I don't think I am prepared enough (my school did not teach half of the necessary material). I started studying last week but there is continuous new information that I can not quickly understand. I want to major in Biology or Chemistry, is SAT II Chem or Bio necessary for college admission (hopefully Columbia).
Even if I take SAT II Chem, I know I won't get in the 700s.
Is it okay if I decide to take SAT II MathIC, MathIIC, and English Literature (maybe French)?
Thanks for your help!</p>

<p>from what i've just learned u can choose a different SAT II subject test if you dont want to take the one u registered for, so i guess u could take anyone but chem if u dont feel prepared enuff</p>