Biomes

Biotic factors of an ecosystem are:

• non-living
• plants
• living thing
• soil

Which biome covers most of the land mass near the Earth's equator?

• tundra
• desert
• grassland
• tropical rainforest

Which biome is characterized by low temperatures and low amounts of rainfall?

• tundra
• desert
• temperate deciduous forest
• tropical rain forest

Which biome, because of its climate, has the largest number of species of plants and animals?

• tundra
• desert
• tropical rainforest
• pine forest

One characteristic feature of tundra is that only the surface thaws in the summer and refreezes in the winter, leaving a layer of permanently frozen subsoil.  This characteristic is known as

• glaciation
• permafrost
• crystallization
• soilfrost

Which type of trees is found in a temperate forest?

• deciduous
• evergreen
• ginko
• palm

Which major biome is home to cacti, mesquite, white thorn, pack rats, small reptiles, and coyotes?

• desert
• taiga
• tundra
• grassland

Which of the following habitats probably has the greatest number of plant and animal species?

• the African savannah
• a rainforest in Brazil
• a temperate forest in China
• a temperate grassland in Kansas

Which biome contains large populations of grazing herbivores, few species of birds, and deep, rich soil?

• taiga
• tundra
• deciduous forest
• grassland

This biome contains mostly spruce trees and Douglas firs, which are both evergreen.  The winters are long and cold and the summers are short and rainy.  The soil is very rich.  Moose and elk live here.  This biome is classified as a

• taiga
• tundra
• deciduous forest
• temperate forest