The Discover Secure Online Account Numbers program is once again set to be discontinued while the company reaffirms its $0 fraud liability policy on unauthorized charges.
If your referring the dawn of man, (first upright walking animals  with two legs and two arms), as caveman then the closest ancestor  would be the time relevant species of mâ¦onkey because without  knowing what the missing link between the two is we wouldn't know  that answer.
The endosymbiosis theory postulates that the mitochondria of eukaryotes probably evolved from endosymbiotic bacteria. Because of the similarities of their genomes, rickettsias may be the closest relatives to the ancestors of mitochondria, an organelle that is part of the structure of both human and plant cells.