1. Organisation of ecosystems

Available for over a year

Dr Alex Lathbridge guides you through important GCSE Biology facts, with a few jokes thrown in too. In this first episode of our series all about ecology, Dr Alex Lathbridge breaks down the key facts about ecosystems, habitats and populations. Dr Alex looks at how food chains are formed, how predators and prey interact and what stable communities are. Dr Alex also talks about how quadrats and transects are used to estimate population sizes of organisms. Take a look on the BBC Bitesize website to find out more about this topic, with revision notes, quizzes and exam-style questions: https://www.bbc.co.uk/bitesize/guides/zqskv9q/revision/1 Suitable for: Combined science AQA Synergy AQA Trilogy Eduqas Edexcel OCR 21st Century OCR Gateway Single science AQA Eduqas Edexcel OCR 21st Century OCR Gateway