Roughly speaking, the larger galaxies tend to have larger central black holes.
No. The galaxy is held together by the mutual gravity of every object in the galaxy. The central black hole accounts for only a tiny fraction of that mass.
No. We are at a safe distance from the galaxy's central black hole and there is no reason to believe that will change.
If you mean that somehow the black hole can be removed or flung out of the galaxy than, no it can't, because the galaxy (or more specifically all the stars, gases, and asteroids, and dust clouds) orbit around the central black hole in a galaxy, they are just moving to fast and to far away to be pulled into the black hole, and if a black hole where to move the surrounding stars and debris would follow is path.
The galactic centre is the central region of a galaxy. Most, if not all galaxies have a supermassive black hole at their centre.
A galaxy is bigger than a black hole.
Gases and stars and a massive central black hole.
no it does not depend on the black hole in the middle of the galaxy
no the galaxy is way to big for a black hole to do much in fact we now know that there is a supermassive black hole in the center of our galaxy right now.
The Milky Way (our galaxy) is believed to have one in the center. Every or almost every galaxy has a black hole in the middle of it.
No. No black hole is big enough to do that.
All galaxies orbit around a central core - firmly believed to be a massive black hole.
It seems that just about EVERY galaxy has a huge ("supermassive") black hole in its center.