Accessibility in AP Biology

Hi, my name is Kerrie Smith.  I hope I'm writing my post in the right place.  I'm going to try to explain this further.  I'm taking the AP Biology course, and in the exercises, when it has models and then asks what elements they represent, the questions are asked about the models, but the models are not described.  For example, I'm on the first unit, "The Chemistry of Life," and I'm on the lesson about building blocks of life.  It asked about a molecular model and whether it's a protein, a carbohydrate, etc., but the model is not described.  I decided to take this course again.  I hope to see improvement on this soon.  I am enjoying learning, though, and want to continue.  Thanks.