Endocrine System Introduction. The endocrine system is made up of glands that produce and secrete hormones, chemical substances produced in the body that regulate the activity of cells or organs.he major glands of the endocrine system are the hypothalamus, pituitary, thyroid, parathyroids, adrenals, pineal body, and the reproductive organs (ovaries and testes).
The Heptarchy, according to Bartholomew's A literary & historical atlas of Europe (1914) The Heptarchy is a collective name applied to the seven petty kingdoms of Anglo-Saxon England from the Anglo-Saxon settlement of Britain in 5th century until their unification into the Kingdom of England in the early 10th century. The term Heptarchy alludes to the tradition that there were seven Anglo-Saxon kingdoms, usually enumerated as: East Anglia, Essex, Kent, Mercia, Northumbria, Sussex and Wessex. The Anglo-Saxon kingdoms eventually unified into the Kingdom of England. The historiograph
Diarchy (or dyarchy; from the Greek Î´Î¹- / Î´ÏÎ¿ meaning two and á¼ÏÏÏ meaning to rule) is a form of government in which two individuals (diarchs) are joint heads of state. Most diarchs hold their position for life, passing the position to their children or other family members.Diarchy is one of the oldest forms of government: examples include ancient Sparta, Rome, Carthage as well Germanic and Dacian tribes.anks in the Inca Empire were structured in moieties, with two occupants of each rank, but with different prestige, one hanan (upper) and one hurin (lower). In modern usage, diarchy means a system of dual rule, whether this be of a government or of an organization.