What changes occur in the lining of the human uterus during the days leading up to the release of an egg cell?
- AIt breaks down.
- BIt is lost from the body.
- CIt thickens.
- DIt thins.
Biology 0610 · IGCSE · Sexual reproduction in humans
What changes occur in the lining of the human uterus during the days leading up to the release of an egg cell?