Complete workbook for Topic 2C of the Edexcel IGCSE Biology (4BI1) and Double Award (4SD0) specifications. Covers why large organisms need transport systems, double circulation, the heart (anatomy, ...
A set of 20 AQA GCSE Biology multiple-choice questions covering Topic 2: Organisation. Questions include Foundation and Higher Tier content on the digestive system, enzymes, the heart, blood vessels, ...