National Center for Ecological Analysis and Synthesis, University of California Santa Barbara
Kids Do Ecology: Biomes
At this site from National Center for Ecological Analysis and Synthesis you will find the answers to many questions about biomes. You will also find a listing of biomes along with a detailed explanation of each.
Palomar Community College District
Major Biomes of North America
A good review of basic terminology followed by descriptions and pictures of the North American biomes.