which adaptation helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold…

which adaptation helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold weather? three layers of fur blubber finding shade underground white skin

which adaptation helps polar bears maintain a constant internal temperature (thermal homeostasis) in cold weather? three layers of fur blubber finding shade underground white skin

Answer

Brief Explanations:

Polar bears have a thick layer of blubber under their skin. Blubber is a type of fat that acts as an excellent insulator, helping to retain body - heat in cold arctic environments. Three layers of fur mainly help with water - repellency and some insulation but blubber is more crucial for maintaining a constant internal temperature. Finding shade underground is not a typical adaptation for polar bears as their habitat is mostly ice and snow. White skin is for camouflage, not for thermal regulation.

Answer:

blubber