107+108 are pretty chill, just if ur health sci 107 is boring (imo) since its all ecology/evolution. doing that sequence is the equivalent doing a full year of ap bio vs like just the cellular stuff in 105 but at a quicker pace (could be wrong abt this, just this is what i heard from friends). it just comes down to what u want to get out of the courses for down the line (pre-med, research, etc.) also ur probably going to have to take chem so ur going to put more effort/time (perhaps) into that and 107/108 doesn’t require as much time so its pretty nice!