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.
That said, it is important to point out that education in America is primarily a State and local responsibility, and ED's budget is only a small part of both total national education spending and the overall Federal budget, as we explain in a primer on the Federal role in education.