Will AP Classes prepare you for SAT Subject tests?

So I am signed up to take the US History and Biology E/M (I don’t know which one yet) subject tests on May 6th. Right now I am taking AP US and AP Bio and will be taking the AP Exams in the 2 weeks surrounding the 6th. My question is, will I have to do any additional studying for the SAT Subject tests or will my studying for the AP Exams be enough?

My kid did no extra studying and got a 740 on USH a few weeks after getting a 5 on APUSH

On Bio you should be fine, most kids take it after freshman bio.

@lgmac23 My son did no extra prepping for his subject tests 2 years ago. He got a 4 on the AP Bio exam, and a 740 on his Bio M subject test. Took Math II after Honors Calculus and got a 770 on it. My daughter is taking Math II and one of the Bio subject tests on May 6th as well. Good luck to you.