Answer:
Ova are made in the ovaries, and sperm in the testicles.
The genetic material of the ova and sperm combine to make the characteristics of the child.
If the ovum is unfertilised, the lining of the womb comes away (a period).
Sperm production requires a temperature around 2 °C lower than that of the body, which is why the testicles are housed in the scrotum.
The only function of the sperm is to fertilise a female egg and create new life.
