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Mitosis is a type of cell division which produces two identical diploid daughter cells. Cancerous tumours are either malignant or benign. Specialised cells are formed when stem cells differentiate.

The nervous system enables humans to react to their surroundings and to coordinate their behaviour. It comprises billions of neurones, and it uses electrical impulses to communicate very quickly.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.