Two units (equivalent to two years or four semesters) of laboratory science are required (three units are strongly recommended), providing fundamental knowledge in two of the following disciplines: 1  Biology. 2  Chemistry. 3  Physics.
Slave forts were established all along the coast of West Africa, to house captured Africans in holding pens (barracoons) awaiting transport. They were equipped with up to a hundred guns and cannons to defend European interests on the coast, by keeping competitors at bay. There were approximately 80 castles dotted along the slave-trading coast.
1680s, temporary hut for soldiers during a siege, from French barraque, from Spanish barraca (mid-13c. in Medieval Latin) soldier's tent, literally cabin, hut, perhaps from barro clay, mud, which is probably of Celt-Iberian origin.