The very first thing that you should have done is to inquire with your instructor/advisors, etc. These people have gone through all this and should know the resources that you need.
Secondly, by this time, shouldn't you already belong to some organization related to your area of study? The APS may not have the complete listing of jobs for biological sciences. Shouldn't you already be a member of such organization similar to the APS but for biological sciences, something like the American Institute of Biological Sciences. Don't these organizations offers job search services?
Zz.