Higher organism is something that's, well, sophisticated. Something that God may have created for us to marvel - and to remind us that we can't build such things ourselves (depending on beliefs, of course - depending if you believe in God and depending of you believe in unavoidable, relentless triumph of nanotechnology).

Priest: "What is the highest of all creatures God has created?"

Farmer's son: "Hmmmm... our neighbor's horse, I guess."