eukaryogenesis

Eukaryogenesis is the process by which complex cells, known as eukaryotic cells, evolved from simpler, bacteria-like ancestors. This transformation involved the merger of an early ancestor cell with another type of bacteria that eventually became mitochondria—the cell's energy producers. Over time, this relationship became permanent, leading to cells with a nucleus, internal compartments, and more advanced functions. This event was crucial in the development of all complex life forms, including plants, animals, and fungi, shaping the diversity of life we see today.