...there is no mention of the time scale of these changes -- do they occur in individuals (no) or are they realized in descendant populations (yes)?
you know, I was making dinner with my wife and kids and I thought " oh, I forgot to add anything about a time pierod! " but by the time we were done eating we were watching a movie and I forgot again until this morrning at work
so I would add "Evolution is the process that, at the smallest level and over time,..."