Can you take SAT Subject Tests as a junior?

I am interested in the Biology SAT Subject Test but I'll be taking AP Bio as junior. Is it possible that I can take the test as a junior and it still count for college applications?

Yes, you can and should take SAT subject tests as a junior. Most colleges accept SAT subject tests taken up through the fall of senior year for college applications. The only exception would be if you're applying early decision/early acceptance and the SAT subject test score release date is after your application materials are due. Learn more about when to take SAT subject tests in this article.