Function of the Digestive System. The digestive system is a series of hollow organs joined in a long tube from the mouth to the anus. The main function of the digestive system is to break down the food we eat into smaller parts so the body can use them for energy and cell nourishment.wo solid organs, the liver and the pancreas, produce digestive juices that reach the intestine through small tubes. In addition, parts of other organ systems (for instance, nerves and blood vessels) play a major role in the digestive system.
Nigeria is a federal republic with a presidential system. The constitution provides for separation of powers among the three branches of government. General elections held in February 1999 marked the end of 15 years of military rule and the beginning of civilian rule based on a multiparty democracy.
Government is the means by which state policy is enforced, as well as the mechanism for determining the policy of the state. A form of government, or form of state governance, refers to the set of political systems and institutions that make up the organisation of a specific government.ariant of monarchy; a system of government in which two individuals, the diarchs, are the heads of state. In most diarchies, the diarchs hold their position for life and pass the responsibilities and power of the position to their children or family when they die. Diarchy is one of the oldest forms of government.