<p>Fine, if you are at a school that takes CLEP. Do look at the list of schools that do, and especially check if your school does. Also if you are looking into going into a health care field, for example, the bio course may not count towards it. AP BIo has some such limitations too, by the way. Med school wants you at the school taking a course and the corresponding lab when it comes to the Natural Sciences in particular. </p>
<p>Also if you are looking at such a course as part of ones foundation as a prereq course, be careful. A two week bio course with a CLEP exam may not preparing you for the next level of bio that assumes a solid foundation of intro concepts </p>
<p>These courses do a have their uses, but make sure you know their limitations too.</p>