Fill in the Blanks Land Biomes Review ActivityOnline version Review key topics from the different land biomes. by Julie Phegley 1 grassland desert tundra forest The first ecosystem / biome is the . This ecosystem is known for extreme temperatures , receiving 10 inches or less precipitation each year and animals that are active at night . The second ecosystem / biome is the . This ecosystem is known for experiencing all seasons with cold winters and hot summers . It also has mainly grazing animals and few trees . The third ecosystem / biome is the . This ecosystem is known for cold winters and cool summers . There are no trees because of the permafrost . Animals are well adapted by having white or light color fur to camouflage with the snow . The final ecosystem / biome is the . This ecosystem is further divided up based on climate ( tropical , temperate , or taiga ) and types of trees ( deciduous , rain and coniferous ) . No matter what type this ecosystem / biome receives the most rain of any of them and has the greatest biodiversity .