What theory is the most likely explanation for the development of eukaryotic organisms from prokaryotic organisms?Horizontal gene transfer theoryEndosymbiotic theoryOparin-Haldane hypothesisMiller-Urey theory
The correct option is the second one, Endosymbiotic theory. This theory, posits that a bigger prokaryote ate a smaller one, which eventually lost its independence an become an organelle, giving rise to the first eukaryote.