How to do better on the AP Bio test?

I have a good grade in the class and do good on her tests, but when I take practice AP exams, I barely get a high 2. What do I do?
I know all the topics farely well, but the questions are so long and tedious and require a lot of outside information I don’t have. I mean, I studied all these topics and then I took a practice 2014 exam and the whole thing was ecology! They asked weird questions about symbiotic relations and all the answer choice were like “which animal would link with the other?” but I knew nothing about the animals… It’s just, I feel pretty dumb. What did you guys do to prepare for this test? Preferably 2002 test takers and up because that’s when the exam changed.