Edexcel 9-1 IGCSE Biology: 10 very common questions from paper 1B. Essential revision for all IGCSE Biology students. Included: A question sheet with all practice questions, with a link to the video to check answers A second copy of the same sheet, but without the video link (so students can’t check the answers - useful if you want to set it as an assessed homework task) A presentation outlining each answer - ideal for whole-class feedback