Should I sign up for the SAT 2 bio E/M in august or just wait until junior year?

Our honors/AP bio teacher makes everyone sign up and take the SAT 2 in ninth and eleventh grade. I missed the deadline for June signup so I’m wondering if it’s worth it to sign up for August SAT 2 or just wait until eleventh grade since I would probably score about 650 now and about 790-800 in eleventh grade.

If you have just taken biology I would take it now so you don’t forget the material and have to restudy later. If you are planning on taking honors or AP bio junior year, I would wait till then because you will cover more material in these classes

?!?

If you’re not ready, then wait. That way, you have time to study and learn more in class

I agree with @MrElonMusk