How much do the specific courses that your science gpa is composed of actually matter?

If I do not have any offers come January, I am going to take more courses during the spring in preparation for the next cycle. For post-bac work, to what extent do the specific courses that you take matter, other things being equal, assuming that they are upper division credits and not obvious fluff like birds of the national parks for non-majors? My school offers some interesting courses in the areas of plant pathology, conservation biology, ornithology, marine biology, and mycology that... How much do the specific courses that your science gpa is composed of actually matter?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums