With its adaptations like:
There fur coats
Yes
No, it's the wrong environment for it. A polar bear thrives on the ice, not in the forest.
That's its environment.
It's called fat and a thick fur coat
No. A polar bear can not go on a safari. It would be very hot for them under those conditions.
No, they don't live in the same environment.
Tundra biome
No. A lioness and a polar bear would not meet because one (the lioness) lives in a hot, arid environment and the other (being the polar bear) lives in a very cold dry environment. However, if they did meet, the polar bear may be able to kill the lioness with one single swipe to the head. The lioness, on the other hand, would need other lions and lionesses in order to bring down the polar bear.
Because one is a predator (the polar bear) and the other is prey (camel). Also, a camel is found in a different biome and environment from a polar bear, so this makes the "living with" factor impossible.
Polar bear skin is black to help them absorb and retain heat from the sun, keeping them warm in their cold Arctic environment.
by getting used to the cold weather