which classes should I take if I would like to be a biologist or a biomedical engineer
Probably Biology. Just a hunch that I have.
Taking all high science and math classes will help you.
Ex: AP Biology, AP Physics (There are several different types - google them), AP Chemistry, AP Stats, AP Calculus, etc. You want to excel in the math and science fields. However, do not neglect foreign languages, english, etc. You want to take the highest classes your HS offers to get into a good school, especially for biomedical engineering.
Literally all the STEM classes you can. Skip APES in favor of an actual STEM AP (no offense to anyone who somehow gets a lot out of APES).