Final answer:
The biome with the greatest diversity of species is the Tropical rain forest, which is known for its high biodiversity due to warm temperatures and abundant water.
Step-by-step explanation:
The question you've provided asks which biome has the greatest diversity of species, allowing you to select from a lettered list of biomes. Using the information given in the reference material, we can determine that the correct choice is B. Tropical rain forest. The tropical rainforest biome is known for its high biodiversity due to warm temperatures, abundant water, and year-round growth conditions. This allows for a wide variety of plant and animal life, which is higher than in any other terrestrial biome.