Which of the following is TRUE about deserts?
A - They are only found in tropical regions
B - They're mostly just sand with maybe a few cacti, lizards, and snakes
C - On a per-acre basis, they are the least productive biome on Earth
D - Although they cannot support a large biomass, they can support a surprising variety of land and animal life
E - Only small plants and animals can survive in the desert
Answer: D - Although they cannot support a large biomass, they can support a surprising variety of land and animal life