Questions by kamille31 - Page 7
1, name the part of the reproductive system in which fertilisation happens.2, what is an embryo3, where does the embryo develop into a foetus, and then a baby4, why does the uterus lining start to grow thick and spongy, as an egg cell develops in an ovary5, what happens to the uterus lining if the egg cell is not fertilised6, how often does an egg cell leave an ovary, in an adult woman7, how often does menstruation happen, in an adult woman