Final answer:
All of the given options are ways that animals can maintain homeostasis and cool down.
Step-by-step explanation:
All of the given options - flapping their wings, sweating, panting their tongues, and the production of goosebumps - are ways that animals maintain homeostasis and cool down.
Flapping wings, such as in birds, generates air movement and aids in heat dissipation. Sweating in mammals helps to reduce body heat by wetting the skin, and when the sweat evaporates, it cools the body. Panting, which is observed in animals like dogs, helps release heat by the evaporation of water from the tongue and other moist areas of the mouth and throat. The production of goosebumps, caused by the contraction of arrector pili muscles, actually increases body temperature, but it is a response to cold conditions to minimize heat loss through the skin.