Biomes

 1. If you visited a savanna, you would likely sea.large herds of grazing animals, such as rhinos, gazelles, and giraffes.b.a dense forest.c.snow and ice.d.a coastal ecosystem.

• large herds of grazing animals, such as rhinos, gazelles, and giraffes
• a dense forest.
• snow and ice
• a coastal ecosystem

Grasslands, such as the prairies of North America,

• are suitable for corn and wheat, but not suitable for soybeans
• are threatened by soil erosion because native grasses have been damaged or destroyed by plowing and overgrazing
  
• support almost no animal life now that the millions of buffalo that once roamed there are gone
• support a rich layer of dense grasses because they receive at least 250 cm (100 in.) of rain per year

Which of the following best describes a tropical rain forest?

• dense, thick soil that supports a dense layer of plants on the forest floor
• species of animals with specialized ways of surviving in order to avoid competition
• very few species of trees, due to poor soil quality
• plants and animals that are very similar due to year-round warmth and moisture

Animals that live in the desert

• hibernate in winter
• hibernate in winter
• usually have thin skin to absorb water
• include camels, moose, and various reptiles

 Deserts are

• covered with sand and contain no plant life
• found only in North America
• often formed on the dry side of mountain ranges
• never located in cooler climates

The tundra

• has a layer of soil that is permanently frozen beneath the top soil
• is too cold to support insect life
• is resistant to environmental damage because it is usually frozen
• All of the above
  

 Taiga is

• a cold, treeless, desert-like biome found near the North and South Poles
• found mostly in Africa
• a forest biome dominated by coniferous trees, such as pine, fir, and spruce
• a dry, rocky biome found in the central part of South America

Which of the following statements is not correct?

• Grasslands have rich soil that supports abundant plant life
  
  
• Grasslands have rich soil that supports abundant plant life
• Chaparral fires are beneficial because they destroy trees that compete for light and space
• Tropical rain forests are resistant to change because the plants contain so many nutrients

Which of the following is not true about temperate deciduous forests?

• Trees grow lush green leaves in the spring, but lose their leaves in late summer
• The soil is rich, and plants cover much of the forest floor
• Animals such as squirrels, bears, and deer find food in the form of nuts, berries, and leaves
• Both (a) and (b)

 Biomes

• contain two ecosystems, hence the name “biome
• are usually described by their vegetation
• exist in limited regions of the world
• All of the above