<p>Sarah Lawrence focuses on visual and performing arts, some humanities, and psychology; its biology offerings are relatively limited, although it does appear to have the pre-med set of courses.</p>
<p>Dartmouth is one of the most heavily fraternity/sorority schools in the US (about 65% of eligible students are in one), so it may not be a good fit for the “small or no Greek life” and “NOT known for its drug/alcohol/party scene” criteria.</p>
<p>Given how broad a field biology is, it would make sense to check the course offerings (catalogs and schedules) at the various schools to see how well their biology departments match your interests.</p>
<p>The five college consortium in Massachusetts includes the large University of Massachusetts - Amherst, so students at the four other schools (small LACs) may be able to take advantage of a larger course catalog. Same with Barnard with respect to Columbia (however, Barnard does not meed to “co-ed” criterion).</p>