Original sentence: Tropical and subtropical grasslands, savannas, and shrublands is a terrestrial biome defined by the World Wide Fund for Nature.. The biome is dominated by grass and/or shrubs located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes
Edited sentence: Tropical and subtropical grasslands, savannas, and shrublands are terrestrial biomes dominated by grass and/or shrubs located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes