Which biome type contains the greatest diversity?

The greatest diversity of plants and animals on Earth is found in the tropical rainforests. Rainforests are located near the equator and receive abundant rainfall throughout the year. This warm and humid climate is ideal for plant growth, and rainforests are home to a wide variety of plant species. The diversity of plants in rainforests supports a diverse community of animals, including insects, birds, reptiles, and amphibians.