AS level Edexcel B Biology Revision

There's not much revision material on the board and honestly, this is not that easy to revise all by myself either.
Does anyone know any videos that could help in the same board?
I tried Free Science Lessons but it's certainly not got everything in it, I think

Hi!
Hopefully these sources can help you:
Youtube:
Cognito, primrose kitten, science with Hazel and FuseSchool
Websites:
Seneca Learning, BBC Bitesize, Khan Academy (Not UK specific but does help to understand more difficult concepts)
Make sure you filter the sources to the correct exam board, check what your looking at is on the specification and use these sources alongside past papers!
Hope this helps,
Katy,
LJMUStudentReps