Annelida. The animals in the Annelida are segmented worms. They have no legs, and no hard skeleton. Unlike mollusks, annelid bodies are divided into many little segments, like rings joined together. There are many other kinds of worms, but only annelids are segmented this way.
(October 2015) A state education agency (SEA), or state department of education, is a formal governmental label for the state-level government agencies within each U.S. state responsible for providing information, resources, and technical assistance on educational matters to schools and residents.
The U.S. Constitution leaves the responsibility for public K-12 education with the states. The responsibility for K-12 education rests with the states under the Constitution. There is also a compelling national interest in the quality of the nation's public schools.