I am currently studying biology, psychology and EPR. I had no idea what I wanted to when choosing my a levels but have now decided I want to go into marine biology/conservation and I am volunteering next year in Zanzibar helping with coral reef and sea conservation. Most universities require chemistry or another science, however my college will not allow me to pick it up and drop a subject due to being too far into the course (half a term). I am considering doing it online at home but was wondering what the best way to go about this is and if anyone had any advise.