<p>do colleges prefer a certain one?</p>
<p>depends on what you would like to pursue in college…</p>
<p>i would take the sat ii bio. its what i took and it was the easiest out of all my sat ii’s. i would recommend ecology, because most of it is just common sense, and the rest is just vocabulary.</p>
<p>I don’t think either one is preffered perse, but, if you are planning on being an engineering major, chemistry would definitely be better.</p>
<p>Chemistry is a good choice in terms of keeping your options open; sometimes there are requirements for SAT II subjects based on which school (as in, School of Arts and Science, School of Engineering, etc.) you are applying to. Chem is one that overlaps with Arts/Sci and Engineering.</p>