Flashcards for AQA GCSE Biology 5.1 Homeostasis, covering the key terms, definitions and processes you need to recall for Paper 1 and Paper 2. 22 cards drawn from 5.1 Homeostasis, matched to the AQA GCSE Biology (8461) specification. Recall questions account for roughly 40% of marks at GCSE Biology, so these target the marks you can secure before the paper starts.