Reproduction is important for the survival of all living things. Without a mechanism for reproduction, life would come to an end. There are two types of reproduction, asexual and sexual reproduction.

Asexual reproduction refers to simple cell division that produces an exact duplicate of an organism. Some single-celled organisms reproduce by simple cell division, this is called binary fission. In this manner, the mother cell simply splits in half producing two daughter cells. Some cells reproduce by unequal division of the cells, this is called budding. In this process the bud forms as a knob on the mother cell. The nucleus divides and identical parts go to the mother cell and the bud. The bud may grow until it is as large as the mother cell and can form buds of its own. In some cases buds remain attached to the mother cell. In others, they break away and live as separate organisms.

Sexual reproduction involves the joining of male and female sex cells. The sperm refers to the male sex cell and the egg refers to the female sex cell.