I won't argue scientific reasoning has as its purpose a continual search for evolving truth; that should be tacitly obvious. I won't argue religion isn't staunch in its intractibility to change. What I am comparing is the methodology for coming to conclusions in both arenas.
Science uses evidence to narrow down possibilites, then goes with the best guess. Religion proof is based on ancient writings and recorded history of various cultures, compared for similarities and discrepancies. Both science and religion pick and choose what evidence is relevant, discarding what is felt to be irrelevant. Both pursuits inevitably come to a place where a conclusion must be drawn.
You are ready to believe in quarks because there is evidence to support their existance- yet it is quite possible the evidence may be the result of another natural phenomena outside what we know. Until such time this evidence might be found, you will be prepared to slap me upside my head with my ignorance- only to be later found to be incorrect. Oops.
Sure, there are plenty of zealots who do the same with religion, we all know that. And surely you must recognize there is much disagreement not only amongst the different religions, but within specific religions themselves. That conflict almost universally revolves around the interpretation of the Word or the significance of such interpretations. This leads the theologists to study the history of the time of the writing, apply the words to the timeperiod, extrapolate meanings from that timeframe, etc. I guess what I am saying is there is plenty of debate within religious circles over what is to be accepted and what isn't, and the process is scientific. The one specific point that cannot be disproven (within the religious debate) is the existance of God- everything else is open to discussion. Taken this way, religion is only marginally less absolute than science.