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Shoaling and schooling. These powder blue tangs are shoaling. They are swimming somewhat independently, but in such a way that they stay connected, forming a social group. These bluestripe snapper are schooling. They are all swimming in the same direction in a coordinated way. In biology, any group of fish that stay together for social reasons ...
In oceanography, geomorphology, and geoscience, a shoal is a natural submerged ridge, bank, or bar that consists of, or is covered by, sand or other unconsolidated material, and rises from the bed of a body of water close to the surface or above it, which poses a danger to navigation. Shoals are also known as sandbanks, sandbars, or gravelbars.
Term Description Examples Autocracy: Autocracy is a system of government in which supreme power (social and political) is concentrated in the hands of one person or polity, whose decisions are subject to neither external legal restraints nor regularized mechanisms of popular control (except perhaps for the implicit threat of a coup d'état or mass insurrection).
Normal schools in the United States in the 19th century were developed and built primarily to train elementary-level teachers for the public schools. The term “normal school” is based on the French école normale , a sixteenth-century model school with model classrooms where model teaching practices were taught to teacher candidates.
More than half of students in the United States attend school districts with high concentrations of people (over 75%) of their own ethnicity and about 40% of black students attend schools where 90%-100% of students are non-white. [10][11] Blacks, "Mongolians" (Chinese), Japanese, Latino, and Native American students were segregated in ...
October 15, 1966. Designated NHL. July 19, 1964. The Sycamore Shoals of the Watauga River, usually shortened to Sycamore Shoals, is a rocky stretch of river rapids along the Watauga River in Elizabethton, Tennessee. Archeological excavations have found Native Americans lived near the shoals since prehistoric times, and Cherokees gathered there.
The Tenth Amendment (Amendment X) to the United States Constitution, a part of the Bill of Rights, was ratified on December 15, 1791. [1] It expresses the principle of federalism, also known as states' rights, by stating that the federal government has only those powers delegated to it by the Constitution, and that all other powers not forbidden to the states by the Constitution are reserved ...
In 1954, segregation of public schools (state-sponsored) was declared unconstitutional by the U.S. Supreme Court in the landmark case Brown v. Board of Education of Topeka . [ 10 ] [ 11 ] [ 12 ] In some states, it took many years to implement this decision, while the Warren Court continued to rule against Jim Crow legislation in other cases ...