Yes.
No, a supermassive black hole is what makes a quasar.
It is currently believed that most, if not all, galaxies contain supermassive black holes at their centers. These black holes can vary in size, with some being relatively small and inactive. However, the presence of supermassive black holes in galaxies is a common feature in the universe.
Most black holes form when massive stars exhaust their fuel and their cores collapse. There are also supermassive black holes at the centers of most galaxies. Scientists are not sure how supermassive black holes form.
Yes, many galaxies have supermassive black holes at their centers.
Yes
Not sure what you mean. M60 is a galaxy. Just about all galaxies have supermassive black holes in their center - and lots of smaller black holes. The supermassive black hole in M60 is estimated to have 4.5 billion solar masses - one of the largest known black holes.
First of all, the song is called Supermassive Black Hole (not Holes) by Muse. It is not on Guitar Hero III for the Wii.
Most or all galaxies appear to have supermassive black holes at their centers and probably have stellar mass black holes scattered throughout.
Black Holes are scattered throughout the cosmos. It is theorised that there are supermassive black holes at the centre of galaxies such as ours (The Milky Way).
Yes. Our galaxy has a supermassive black hole at its center and likely millions of stellar mass black holes scattered throughout.
Probably only one - at the centre.
Yes. In simplistic terms, a quasar is the result of a supermassive black hole. The gravitational attraction of the supermassive black hole on the galaxy, causes the effect of the quasar. See related questions for more information.