⏰🧬 A biological clock refers to the inherent timing mechanism found in living organisms that regulates various physiological processes and behaviors, such as sleep-wake cycles, hormone production, metabolism, and cell division. It operates based on intricate molecular interactions within cells, involving genes and proteins that create oscillations and respond to environmental cues, like light and temperature. This internal timekeeping system helps organisms adapt to daily and seasonal changes, ensuring optimal functioning and synchronization with the external world.