Section 4-3 Assessment 1. The major biomes are Tropical rain forest, tropical dry forest, tropical savanna, desert, temperate grassland, temperate woodland and shrubland, temperate forest, northwestern coniferous forest, boreal forest, and tundra. The characteristics are listed between pages 100-105. 2. Biomes are classified by their climate, which is determined by precipitation and temperature, and by the community of organisms that live there. 3. Tropical rain forests have higher temperatures and more rainfall annually than do tropical dry forests. 4. Animals found in mountain ranges must be adapted to cooler, wetter conditions that are found there. 5. Tundra animals need to be well insulated with thick coats of fur/hair or layers of feathers. Section 4-4 Assessment 1. Depth, flow, temperature and chemistry of overlying water 2. They are alike in that the water contains oxygen and nutrients. They are different in that the water in a flowing-water ecosystem moves rapidly near the source and slows near the mouth. Water in a standing-water ecosystem has little net flow but circulates within the system. 3. Photic zone, aphotic zone, intertidal zone, coastal zone, open ocean, benthic zone