The biodiversity of a biome is the different variety of organisms in that biome that all play a role in their environment.the deserts biodiversity is not very big(compared to other biomes). The desert has different types of cacti, birds, snakes, and bugs.cacti is the most major vegetation because it doesn't need much moisture to survive.Deserts don't have very many plants. They do have some low down plants though. The only animals they have that can survive have the ability to burrow under ground. This is because they would not be able to live in the hot sun and heat. They only come out in the night when it is a little cooler.Hot and Dry Deserts animals include small nocturnal (only active at night) carnivores. There are also insects, arachnids, reptiles, and birds. Some examples of these animals are Borrowers, Mourning Wheatear's, and Horned Vipers. Cold Deserts have animals like Antelope, Ground Squirrels, Jack Rabbits, and Kangaroo Rats.