Final answer:
Deserts would be considered the least fragile biome among the options provided.
Step-by-step explanation:
The desert biome would be considered the least fragile among the options provided. Deserts are characterized by low precipitation, cactus, hardy shrubs, and high temperatures, which make them resilient to environmental changes. Unlike the other options, deserts have adapted to survive in a harsh and arid climate with limited water resources.