Which of the following is NOT one of the eleven main biomes?

In understanding biomes, it's important to identify the main types that are widely recognized in ecological studies. The eleven main biomes include categories such as tundra, desert, grassland, temperate forest, tropical rainforest, savanna, and others.

The temperate forest biome is commonly listed, but "tempered forest" as stated in the option is not a formally recognized biome in this context. It's possible that it is a typographical error or a misrepresentation of "temperate forest."

On the other hand, tundra, desert, and tropical dry forest are established biomes. The tundra is characterized by cold temperatures and permafrost, deserts are defined by low precipitation, and tropical dry forests are found in regions with distinct wet and dry seasons, emphasizing the variation in climate and vegetation among the properly recognized biomes.

Thus, the choice of “tempered forest” does not align with the established nomenclature of recognized biomes, making it the answer that is NOT one of the eleven main biomes.