A camel survives in the desert without water for a few days (c) by reducing the metabolic process. This physiological adaptation enables the camel to conserve water by minimizing the rate of fluid loss from the body. During periods of water scarcity, camels decrease their metabolic rate, allowing them to generate less heat and produce less urine, thereby conserving precious water resources.

Additionally, camels are equipped with specialized mechanisms to prevent dehydration, such as efficient water reabsorption in the kidneys and the ability to tolerate significant fluctuations in body temperature. They can also obtain moisture from the vegetation they consume and can efficiently extract water from their food, further aiding in their survival in arid environments. These adaptations collectively enable camels to endure prolonged periods without access to water in desert habitats.