Thinking Biblically about the appendix

Let’s assume that modern science knew of no function for the appendix. Would that show it was a useless left-over from our past evolution from the animals? Not at all. There would be at least two other possibilities, when our thinking is based upon the Bible:
It had a created function in people originally, but as a result of the Curse (consequent upon Adam’s sin) on all creation, humanity has degenerated. Thus, our body has lost some functions which it once had. Evolution requires a gain in information—new structures, new functions.
It has a created function, but we don’t know what it is yet.