Organic chemistry is an entirely different animal than general chemistry.
Now, read this thread about the NYU chemistry placement test: http://talk.collegeconfidential.com/new-york-university/941589-chemistry-placement-exam.html
To me, you’ve got a rigorous enough schedule without AP Chem.
That said…AP Chem looks good on the transcript of someone wanting to study STEM.
Then again…you don’t want to screw up your GPA, particularly if you end up with a lower ACT score.
If possible…do AP Chem and Band…dump Anatomy and Phys
You can do Anatomy and Physiology at community college over the summer if you want. Make sure it transfers.