A set of Q&A cards to help you with revision for your biology exams. It covers units B1, B2 and B3 (from the OCR Gateway science exam board).It is a work in process and i will add more cards as my revision progresses. Any words in capitals are important! All information and questions sourced from the CGP GCSE Biology Higher Level Revision Guide for the OCR Gateway Exam Board. DOES NOT INCLUDE OCR 21st CENTURY SCIENCE! Aimed at year 10 and 11 students. Hope it helps and good luck in your exams!