GCSE Combined Science : Trilogy / Biology Paper 1

This video walks you through the whole 2019 Biology Trilogy Paper 1, giving you exam tips, showing you techniques and helping you to use the key terminology. This will take you all the way up to level 9. You can download the paper from the AQA website - 8464 Paper 1 2019. 5.3 minor correction - even though I say there is zero uptake of nitrate ions from 3.5 hours I mistakingly wrote from 3.0 hours in the answer, sorry!