21.   But increasingly, he said, the Federation system will evolve as an agent that marshals funds and provides choices for independent and Federation donors.

22.   But Mike has evolved as a warrior and a competitor, and his skills have come along nicely.

23.   But over a long time, there was sufficient genetic interchange to ensure that all humanity evolved as a single species.

24.   Deer are swift and antelope alert because they evolved as prey to a killer cunning and fierce.

25.   Diarrhea and vomiting, though unpleasant, also serve as defenses, evolving as ways to evade danger, and thus to preserve fitness.

26.   Firewire is evolving as the standard for connecting a new generation of digital video cameras.

27.   Fraternities know there is a public perception that they have evolved primarily as drinking clubs for students whose grade-point average is comparable to their blood alcohol level.

28.   He has really evolved as a person.

29.   Her dishes are as evolved as those in fine New York City and Boston restaurants, the presentation as exquisitely mannered.