I didn't do biology but I did eduqas a level physics. Some of the things I did for physics which probably apply to biology too:
I didn't find the eduqas textbook much help but the study/revision guides were quite good in getting straight to the point with no waffling.
Physics and maths tutor had notes for eduqas which were quite good sometimes but also sometimes really brief (not enough).
I would recommend looking on the eduqas website and buying any textbooks/practice exam question booklets from there as they are made specifically for the course.
For past papers, there is all the old and current specification WJEC papers which are practically the same as eduqas. Since there's so many you can do them as you learn a new topic. Sometimes if you learning a new topic and don't know what's relevant/important it's best to look at some exam questions and see what parts of the content are used/how it's used.
Also quite a lot of the course (for physics at least) overlaps with AQA/Edexcel so you can use resources designed for those exam boards. Just be sure to check the specification if you do this to make sure you are covering everything
Hope that helps even though it's only general advice