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.
a system in which the national, centralized government holds ultimate authority. It is the most common form of government in the world. Confederal government (rare, but was first form of government in the USA) a form of government in which states hold power over a limited national government.