Within these regions are all the major types of biomes in the world. A biome is a community of animals and plants spreading over an extensive area with a relatively uniform climat… 查看更多內容

The Rocky Mountains are part of a system of parallel mountain ranges known as the Cordilleras. A cordillera is a long series of mountain ranges. Although cordilleras exist all over the world, in North America, the Cordilleras indicate … 查看更多內容

The temperate rain forest supports a wide variety of life. The Sitka spruce, western red cedar, and Douglas fir are trees native to North Americas temperate rain forest. Some of these trees gr… 查看更多內容

The tundra, stretching along the northern borders of Alaska and Canada to the Hudson Bay area, is a … 查看更多內容

The Everglades is a biologically diverse region and contains several bordering ecosystems. Sawgrass marshes are the most iconic plant comm… 查看更多內容

The Sierra Madre mountain system is part of the Cordilleras. The Sierra Madre stretch from the southwestern United States to Honduras. Th… 查看更多內容

The three major desert regions of North Americathe Sonoran, Mojave, and Chihuahuanare all in th… 查看更多內容

The Great Plains lie in the middle of the continent. Deep, rich soil blankets large areas of the plains in Canada and the United States. Grain grown in this region, called the Breadbasket of North America, feeds a large part of th… 查看更多內容

The Caribbean Region includes more than 7,000 islands, islets, reefs, and cays. The regions islands and smaller islets are varied in their topography; some have relatively flat and sandy terrain while others are rugged, mou… 查看更多內容