You included one vestigial organ in your question---the appendix. Since Vestigiality is the retention during the process of evolution of genetically determined structures, I would suggest that He probably has no appendix.
And of course, the likeness is is chiefly in the soul---in the intellect and free will.
And "simple" immortality requires sinlessness. (We are immortal, but only in the form of resurrected bodies.)
This post was edited by tom jackson at December 6, 2018 12:50 AM MST