An egg develops in an ovarian follicle before ovulation. At the beginning of its development, the follicle has a diameter of 35×10−3 mm35 \times 10^{-3}\text{ mm}35×10−3 mm. Just before ovulation, this follicle has grown to a diameter of 18 mm18\text{ mm}18 mm.
Calculate the increase in the diameter of the follicle.
Give your answer to 2 decimal places.
23 exam-style questions on OCR GCSE Biology 3.2 Coordination and control – the endocrine system, covering 3.2.1 Principles of hormonal coordination and control, 3.2.2 Roles of thyroxine and adrenaline, 3.2.3 Hormones in human reproduction, 3.2.4 Interactions of reproductive hormones, 3.2.5 Hormones in contraception, 3.2.6 Hormones in reproductive technologies, 3.2.7 Plant hormones in growth and coordination, 3.2.8 Effects of plant hormones, and 3.2.9 Uses of plant hormones. Each one has a worked solution and a mark scheme showing where the marks go.