Absolutely! I only studied all 3 sciences because I wanted to. Some Universities ask you to have Biology and Chemistry, but others will ask you to have Biology and one other science subject (this can include maths sometimes or things like psychology if your school teaches that). It really depends on the Uni, but you can check out what you need by googling the University and the biology course you want to take. Physics is definitely the least needed science so don’t worry 🙂
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