The mouth.The oral cavity, most commonly known as the mouth, is surrounded by the lips - which are at the anterior of the mouth, the throat which opens into the pharynx - this is named the posterior...
A Unitary form of government is one in which sovereignty is wholly in the hands of the national government, so that the states and localities are dependent on its will.
A Confederal form of...
lance An open system is a system which continuously interacts with its environment. The interaction can take the form of information, energy, or material transfers into or out of the system boundary,...