But they have their own equivalents. It's that soupy interim between one vital system setup, especially those involving reproduction, and another that bothers me. Too may of these systems are irreducibly complex. An example, please. The eye, wing and bombadier beatle have already been shown to not be irreducibly-complex features on other threads. We can recapitulate that here, if you'd like, but you may have to wait till Monday as I have to render unto Uncle Sam that which is Uncle Sam's (it's my drill weekend).
The cell is irreducably complex. That pretty much takes care of systems made of cells. Show me how any cell can survive without one of its parts. Cells are pretty basic, so there you would have to show me a non-cell which evolved into a cell.