AP BIOLOGY

Detailed explanation-1: -The terrestrial biome with the largest biomass is the tropical rain forest. Biomes that are considered highly productive have average annual primary productivity levels of at least 1, 000 grams per square meter. Tropical rain forests have average annual primary productivity levels of over 2, 200 grams per square meter.

Detailed explanation-2: -Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes.

Detailed explanation-3: -Grasslands. Grasslands are the most useful biome for agriculture because the soils are generally deep and fertile. Almost one billion people rely on grasslands for their livelihood or as a food source.

Detailed explanation-4: -Desert is the largest of the biomes. It is only in the tropical rainforest that water and temperature are continuously favorable for plant growth. This makes it the most diverse and productive biome.