It depends on your school I guess. I attend a community college, and the Human Bio course that I took was for non-science majors. It was really really easy for me. . .
The first day of class our professor was discussing how an object (tree, puppy, human, bacteria, etc) was considered to be living. One girl raises her hand and says "You mean it's alive because it has all that gushy stuff inside?"
Of course your class maybe more difficult, but in my school, Human Bio was just a general overview of Biology, basic human anatomy and a little bit of chemistry.