what is sperm?

Answer 1

What Is Sperm?
A sperm is a very tiny male sex cell. Under a microscope, sperm look just like tadpoles. A sperm cell is needed to fertilize a woman's egg (ova) to make a baby. Each sperm is made up of three parts. The head contains the genetic material needed for making a baby. The piece behind the sperm's head is the midpiece, which is the motor of the sperm. The sperm tail makes the sperm move so they can swim from the vagina to the uterus after ejaculation. These guys are not very fast swimmers. Sperm swim about .12 inches (3mm) per hour and they need to wave their tales more than 1000 times just to swim half an inch (1.25 cm).