Final answer:
Waxy monkey frogs combat dehydration by having a specialized skin that reduces water loss, covering themselves with mucus, and adjusting their daily activities to minimize exposure to heat and sun.
Step-by-step explanation:
Waxy monkey frogs avoid dehydration by employing several distinct physiological adaptations. Their skin has evolved to prevent water loss, making it less permeable and more resistant to drying out. This skin is not just moist but also covered with a layer of mucus, similar to the waxy cuticle found in some arid-climate plants such as aloes and agaves, which helps to reduce water loss. Furthermore, these frogs adjust the timing of their daily activities to avoid the hottest parts of the day, seeking shade or burrowing to stay cool, much like how some desert animals adjust their behaviors to conserve water. Specifically, by avoiding activity during the day and reducing exposure to the sun, they limit the need for evaporative cooling, which also minimizes water loss.