Question

Which evidence exists that endosymbiosis actually occurred? A. presence of RNA and DNAB. Plasma membrane found with cell wallC. The presence of a nucleolusD. Double membraned chloroplast

Answer 1

One evidence that endosymbiosis actually occured is the double membraned chloroplast.

One represents the membrane of the original prokaryotic organisms, and the outer membrane represents the vacuole of phagocytosis.