A contraceptive implant releases a hormone continuously. A contraceptive pill must be taken each day.
Why is the implant less affected by forgetting?
Its hormone release begins only after fertilisation.
Its hormone release stops whenever intercourse occurs.
Its hormone release continues without a daily action.
Its hormone release increases whenever an egg matures.
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.