Science requirements?

<p>I have taken biology for only a semester for some reason,
and as a Junior, I have to choose between AP Chem and AP Bio.
Does ANY of the top colleges have some policies that requires
applicants to take at least a year of all Bio, Physics, and Chem?
I took Physics last year, Chem this year, and willing to take AP Chem next year.</p>

<p>bump. anyone?</p>