Should I Disable These Programs?

[mikekhelxD]

Is it safe if I disable these programs? I have no idea what Sync Service and Motorola Services do. They seemed to be running constantly even when I force stop them. Also, the Maps prefetch thing, how do I stop that permanently? It just automatically resets itself when I stop it. In addition, how do I disbale Backup assistant forever? I don't use it at all.