AQA BIOLOGY 'PAPER 1' QUESTIONS and ANSWERS - PART 2

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PART 2
Typical exam questions from AQA biology paper 1, with explanation of answers and some extra exam tips. Covering: Enzymes (A02), SD bars and significance (A02), Immunology + HIV structure (A02), Biodiversity, Directional selection. Also some A03: +VE Supporting dat, -VE contradicting data and limitations of an experiment.
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Ahhh, on the seal question I missed a mark because I never said 'animals need oxygen. To respire.' on the seal question. What a time to be alive. It was an unstated assumption.

jamesklieve