AP BIOLOGY

Detailed explanation-1: -In fact, rainforest soils are nutrient-poor because nutrients are not stored in them for very long. The heavy rains that occur in rainforests wash organic material from the soil.

Detailed explanation-2: -Tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons.

Detailed explanation-3: -In the rainforest, most of the carbon and essential nutrients are locked up in the living vegetation, dead wood, and decaying leaves. As organic material decays, it is recycled so quickly that few nutrients ever reach the soil, leaving it nearly sterile.

Detailed explanation-4: -The primary soil orders found in tropical rainforests are Oxisols and Ultisols, which are soils rich in iron and aluminum oxides (red color) but with low natural fertility. The majority of temperate rainforests have been felled, and currently, this biome type occupies less than 0.3% of the Earth’s land surface.

Detailed explanation-5: -In contrast to temperate forest and temperate grassland biomes, desert biomes tend to have thin, sandy, less-fertile soil. Deserts tend to be hot and dry, so few organisms live there.