should i drop bio??

advantages
- raise my overall average (which is most important)
- i wouldn't look so stupid in class
- i can concentrate more on other stuff (like math and physics) and not have to worry about bio

disadvantages
- ppl will think i'm a quitter
-i'll have two spares, on the same fuckin day, but i still don't get to have double lunch cuz of english, plus, i'll be really bored
- i won't have any gr.12 sciences
-even if i drop i still won't be able to take Challenge and Change

HELP!