03121 Modern Biology

Hey guys, I’m a freshman at MCS and one of the requierments here is that I have to take on Life Sciences course (http://coursecatalog.web.cmu.edu/melloncollegeofscience/#generaleducationrequirementstext).
I am struggling with Modern Bio and I would like to change it with any other Life Sciences course from the list above. I don’t really like bio or chem:)
Do you have any recommendations? Also, is this class going to get harder thrpughout the semester? What format are the tests? How hard are they?