charl
I loved physics, so I'd hesitate at dropping it. But Bio 3/4 is very dooable without the 1/2 (or at least it used to be when I did it). Perhaps ask your teacher for more specific advice, but as long as u work hard - u'll be fine.
They pretty much do everything again, just a bit faster. Do learn your cell features over the holidays though (organelles, etc..)
Good luck 🙂
