<span>mitochondrion is ur answer have a nice day
</span>
Answer:Scientists believe that eukaryotes evolved from prokaryotes around 2.7 billion years ago. The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.
Explanation:
Evolve is a term used to describe how one thing changes and become a higher form of itself so by saying that a multicellular change occurred from a unicellular change Then the correct term would be to say that it evolved