When an organism is finished growing best describes what happens on the cellular level?

When an organism has finished growing, cellular processes such as cell division and differentiation slow down significantly. Many cells enter a state of quiescence or senescence, where they remain metabolically active but no longer divide. Some specialized cells may continue to undergo limited division for tissue maintenance and repair, while others may undergo programmed cell death (apoptosis) as part of normal tissue turnover. Overall, the balance between cell proliferation and cell death stabilizes, maintaining tissue homeostasis.