Retake it! If it was the molecular portions that tripped you up, do the BioE instead as it is more evolutionary and generally easier. The fact that it has lower percentiles is more due to the fact that a lot of students who aren’t prepared for the Bio SATII take that one because they think it will be easier. It’s also curved generously.
Great extracirriculars and if your essays are really good then even breaking 700 will help you monumentally.
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