When did Mitochondria Evolve?
Historically, life is categorized into three broad domains: bacteria, archaea, and eukaryota. Whereas bacteria and archaea are almost all relatively simple, single-celled microorganisms, humans and all other forms of complex, multi-cellular life (including all other animals, plants, and fungi) are classified as eukaryotes, so understanding the evolution of eukaryotes is important for understanding the origin…