How well do you know twilight and newmoon?

About twilight and newmoon, of how well you know it.

1 Who was the vampire who was mostly tracking down bella in twilight?
2 What is jacob black, actually?
3 Why did bella do dangerous things in newmoon?
4 What was the fake story of what happened to bella when she's in the hospital?
5 Why did edward leave bella in new moon?
6 What did bella do to make jasper try attack her?