Exam Board: AQA Level & Subject: AS Biology First teaching: September 2015 Next exams: June 2023 Checked by AQA examiners, this is an essential study and revision guide for the 2015 AQA AS and A-level Year 1 Biology specification topics 3 and 4: Organisms exchange substances with their environment, Genetic information, variation and relationships between organisms. Tackle new-style written exam questions with guidance on practical and mathematical skills Avoid common mistakes and get advice on exams with Exam Notes Focus on just the content you need with Essential Notes Memorise terminology for required practicals and mathematical and Working Scientifically aspects Practise exam-style questions