Materials" are the essential study aid for students at AS and A level. They offer content coverage in a concise and approachable format perfect for revision. All "Collins Student Support Materials": offer a range of content statements in the same order as your new specification to make your revision easier to plan and manage; include example assessments and answers to help prepare for examinations and check your progress; include links to standard textbooks to provide further explanation and support AS Module 1 Core Principles, AS Module 2 Genes and Genetic Engineering, AS Module 3 Physiology and Transport, A2 Module 4 Energy, Continuity and Control, and A2 Module 5 Environment.

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