Final answer:
The repeating steps a cell goes through during its lifetime are called the cell cycle, which consists of the interphase and the mitotic phase. During interphase, the cell undergoes three distinct periods: G1, S, and G2. During the mitotic phase, the cell undergoes mitosis and cytokinesis.
Step-by-step explanation:
The repeating steps a cell goes through during its lifetime are called the cell cycle. The cell cycle consists of two main phases: interphase and the mitotic phase. During interphase, the cell undergoes three distinct periods: G1, S, and G2. During the mitotic phase, the cell undergoes two distinct periods: mitosis and cytokinesis.