Final answer:
Cell reproduction is the process by which cells divide to form new cells. Single-celled organisms, like bacteria, reproduce through cell division. Multicellular organisms, like humans, also use cell division for growth, maintenance, and repair of tissues.
Step-by-step explanation:
Reproduction is the process by which organisms produce offspring. In cell reproduction, cells divide to form new cells. Single-celled organisms, such as bacteria, reproduce through cell division, where the parent cell divides into two identical daughter cells.
Multicellular organisms, like humans, also use cell division for growth, maintenance, and repair of tissues. Cell division is tightly regulated and ensures that each new cell receives an exact copy of the parent cell's genetic material. The phases of the cell cycle and the types of cell division, such as mitosis, are important concepts to understand in cell reproduction.