Exam (elaborations)
OCR 2023 GCSE Combined Science B Twenty First Century Science J260/05: Biology (Higher Tier) Question Paper & Mark Scheme (Merged
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2 © OCR 2023 Part A Eyepiece lens Part B Objective lens Part C Stage 1 A doctor uses a light microscope to look at the chromosomes in human body cells. (a) The microscope is shown in the diagram. Fine focus Part A Part B Part C Coarse focus Mirror (i) Draw lines to connect each part o...
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