Bone structure can vary depending on the type of bone, but there are some generalizations. Bones consist of three different kinds of cells. Vertebrate bones are composed of a substance called hydroxyapatite, which is made of calcium phosphate.
Balanced generally is positive terminology for a government that equally represents all the interests and parties of a nation in its government. Divided government is the negative form where these interests clash and nothing gets done in government because the parties have equal power and never agree.
Advocates of a balanced budget amendment say that the federal government spends too much every year. They say that Congress has been unable to control spending without some kind of restraint and that if spending is not controlled, our economy will suffer and our standard of living will drop.