A classroom animation uses one calendar date for each day of a model 28-day menstrual cycle. Day 1 is labelled 5 June.
Explain which date should show the start of menstruation and which approximate date should show the release of a mature egg from an ovary.
90 exam-style questions on Edexcel GCSE Biology 7.2 Reproductive hormones, covering 7.2.1 Stages of the menstrual cycle, 7.2.2 Hormonal control of the menstrual cycle, 7.2.3 Hormonal contraception, 7.2.4 Evaluating contraception methods, and 7.2.5 Hormones in Assisted Reproductive Technology. Each one has a worked solution and a mark scheme showing where the marks go.