Identify whether each of the following transactions involves spot exchange, contract, or vertical integration. a. Barnacle, Inc., has a legal obligation to purchase 2 tons of structural steel per week to manufacture conveyor frames. multiple choice 1 Contract Vertical integration Spot exchange b. Exxon-Mobil uses the oil extracted from its wells to produce raw polypropylene, a type of plastic. multiple choice 2 Spot exchange Contract Vertical integration c. Boat Lifts R Us purchases generic AC motors from a local distributor. multiple choice 3 Vertical integration Contract Spot exchange d. Kaspar Construction—a home-building contractor—purchases 50 pounds of nails from the local Home Depot. multiple choice 4 Spot exchange Vertical integration Contract

The business cycle is the periodic but irregular up-and-down movement in economic activity, measured by fluctuations in real gross domestic product (gdp) and other macroeconomic variables. a business cycle is typically characterized by four phases—recession, recovery, growth, and decline—that repeat themselves over time. economists note, however, that complete business cycles vary in length. the duration of business cycles can be anywhere from about two to twelve years, with most cycles averaging six years in length. some business analysts use the business cycle model and terminology to study and explain fluctuations in business inventory and other individual elements of corporate operations. but the term "business cycle" is still primarily associated with larger (industry-wide, regional, national, or even international) business trends.

Cancer  is the  uncontrolled growth and division of cells  that is often prevented by  cell-cycle checkpoints that monitor for dna damage or spindle fiber failure and stop the ..  cancer  is theuncontrolled growth and division of cells that is caused  by un-repaired..