Proteins that provide nine essential amino acids are called:

The body also does not need animal protein. Instead, the body requires twenty amino acids, nine of which are called essential because the body does not produce enough of them. They are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

I think they are phenylalanime, threonine, histidine, leucine, lysine, methionine, valine, tryptophan, and isoleucine.

Eukaryotic cells are theorized to have evolved from prokaryotes called the endosymbiotic theory. this explains that the most primitive eukaryotic cell engulfed a prokaryotic cell (by the process of phagocytosis) that is capable of cellular respiration and another prokaryotic cell that is capable of photosynthesis. these prokaryotic cells eventually became organelles and these organelles are the mitochondria and the chloroplast