Answer to Question 1
A business cycle is the periodic but irregular up-and-down movement in production and jobs. It has two phases and two turning points. As the economy slows and the growth in real GDP turns negative, the economy enters the recession phase of the business cycle. At the bottom of the recession phase is one turning point, the trough. As the economy moves through the trough, it enters the expansion part of the business cycle during which real GDP grows. Finally, as the economy reaches its high point and swings from an expansion to a recession, the economy passes through the other turning point, the peak.
Answer to Question 2
D
Several species of squirrels have melanistic phases. In large parts of United States and Canada, the
Mitosis five phases
The Hydrologic Cycle
The stages comprising an arbitrary cell cycle
Checkpoints and proliferation decision points monitor the progress of the cell through the cell cycl
Life cycle of the beef tapeworm (Taenia saginata).