A desert biome is defined by its low levels of precipitation, typically less than 10 inches (25 cm) of rainfall per year. This lack of moisture results in high rates of evaporation and transpiration, leading to a dry and arid climate. The sparse vegetation in deserts is adapted to conserve water and withstand high temperatures. The unique combination of low rainfall and high evaporation creates a harsh and inhospitable environment that only a few species of plants and animals are capable of surviving in.