Biology CH 40.

• If the direction of Earth's rotation reversed, which of the following would be the most likely to occur?


  winds blowing from west to east along the equator
• Trees are rare in the savanna biome because of frequent fires.
• A particular mountain range is subjected to prevailing winds. Which of the following contributes the most to a drier climate on the leeward side of the mountain range?

  air expanding and cooling on the windward side of the range
• Palm trees and subtropical plants are commonplace in Land's End, England, whose latitude is the equivalent of Labrador in coastal Canada, where the local flora is subarctic. Which of the following contributes the most to the differences between these two biomes?

  direction of ocean currents
• In mountainous areas of western North America, which type of plant life would you expect to find on a southern-slope of a mountain?

  drought-tolerant plants
• A cosmic catastrophic event occurred that caused the tilt of the Earth's axis relative to its plane of orbit to increase from 23.5 degrees to 90 degrees. The most obvious effect of this change would bethe elimination of seasonal variation.
• Generalized global air circulation and precipitation patterns are dependent on the intensity of solar radiation near the equator. Which of the following correctly states an event that contributes to the creation of these global patterns?

  Rising air masses that expand and cool in the tropical regions
• Air masses formed over the Pacific Ocean eventually encounter extensive north-south mountain ranges as they move from west to east. Which statement best describes a component of an outcome of this encounter between a mountain range and an air mass?The warm, moist Pacific air rises and cools, releasing precipitation as it moves up the windward side of the range.