A woman using a hormonal contraceptive still ovulates in one cycle. The contraceptive also thickens her cervical mucus.
Which statement explains why pregnancy may still be prevented?
Sperm movement into the uterus is reduced, so fertilisation is less likely.
Egg movement into the ovary is increased, so implantation is less likely.
Egg movement into the ovary is reduced, so fertilisation is less likely.
Sperm movement into the uterus is increased, so implantation is less likely.
48 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.