1. The reproductive system produces and transports sex cells, nurtures the developing offspring, and produces hormones.
2. The female reproductive system involves the ovaries, fallopian tubes, uterus. The egg is released from the ovaries and then is fertilized in the fallopian tubes. From there it moves to the uterus where the fetus will grow and become a baby. The male reproductive system involves the sperm which fertilizes the female egg.
4. There are many things that can go wrong, how many things are you wanting to know? @(you need an account to see links)