1 There are two types of glial cells in the nervous system: the large-bodied macroglia and the smaller microglia. 2  There are two classes of macroglia in the central nervous system: astrocytes and oligodendrocytes.
Exports directly contribute and imports directly reduce their nation's balance of trade (i.e. net exports). A trade surplus is positive net balance of trade, and a trade deficit is a negative net balance of trade.
Define trade discount: a deduction from the list price of goods allowed by a manufacturer or wholesaler to a retailer a deduction from the list price of goods allowed by a manufacturer or wholesaler to a retailerâ¦ See the full definition