@usc1 - Like @happy1 mentioned, ideally you need to work with your guidance counsellor to create a rigorous schedule. Like @thumper1 mentioned, admissions to BS/MD programs are very competitive and successful BS/MD students tend to take the most challenging course-load possible.
College admissions are holistic and there are many factors that are important -
- Stats such as GPA, Test scores, APs are all important and used for screening students.
- Soft factors (essays, interviews) such as why medicine?
- Medical ECs such as clinical research and patient facing volunteering as well as biomedically oriented research
- National or state level awards in STEM areas