Master Topic B3 of OCR Gateway Science A GCSE Biology (J247): the nervous system and neurones, reflex actions and synapses, the brain and the eye, the endocrine system and hormonal control, homeostasis and the control of blood glucose (including diabetes), thermoregulation and the kidney, hormones in human reproduction and contraception, and plant hormones and responses. Worked examples, required-practical method steps, exam tips and graded model answers for Foundation and Higher tiers.
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