SAT II questions (for Bio, Chem, and WH)

I got my score for Sat II Bio and I have mixed feelings about it. My teacher didn’t really prepare us for the exam and rather she “tutored” us for the NYC Bio Regents. My score for molecular was 640 and my classmate got 720. I was told by my bio teacher (who is also an AP Bio teacher) that you shouldn’t skip questions. During the test, I guessed on 12 questions while my friend skipped 14 and didn’t guess on any. I’m a rising sophomore, and I’m going to take chem, APWH, and AP Bio. Ok, my question was whether or not I should take the Sat II bio again, and if yes, when? (Like before the AP exam or after the AP exam). Also, it is good to have 3 subject tests on one day (like bio, chem, and wh)?

You should only take three in one day if you feel that you can prepare well enough for all three. If you are incredibly nervous about all three exams, it is going to be a stressful day

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