Is atheism a scientific perspective?

[Chas]

Never mind cells, look at the human body, is it designed by a god? If it is then the god is useless. Only an idiot would have a common opening for food, water and breathing, any 1st year engineering student could come up with a better design. Would you buy a car with just one opening to fill with fuel, water and air?

How convenient to just ignore cells. We could talk about the cross-talk between signal transduction pathways that allow external signals to change your transcriptional output. We could talk about how cells have regions dedicated to packaging proteins and delivering them to where they need to go. We could talk about the small nucleolar RNAs that direct editing of spliceosomal snRNAs which then cut and rearrange other RNAs which can go on to be translated by the incredibly complex ribosome to make proteins which, by the way were essential for everything I've mentioned so far. 

If you want to complain about the placement of your trachea, then you should at least know that we have plenty of mechanisms to keep us from choking. For example, we have a class of surfactant enzymes that break up fluid in the lungs. Without it, fluid would accumulate quickly and we would die. We could talk about how important the epiglottis is. If this didn't manage to evolve at the same time the trachea/esophagus arrangement evolved, we would choke every time we ate/drank anything.

Or one could try to understand natural selection.  
You make the same old simplistic argument looking only at end products instead of the process of evolution.