Actually, Alaska has a lot of tundra in the northern part of the state but this is a distinct biome and not a true desert. Antarctica is a true desert however. People do live in the Arctic Tundra, however.
The Arctic is primarily sea ice, open sea or tundra and not classified as a true desert. However, people do live in the Arctic.
Artic foxes are adapted to life in the cold such as in the artic. They are not evolved to live in the desert.
Polar bears do not live in the desert. They live in the Arctic.
There are foxes that live in both habitats. The arctic fox is an example of a desert fox since the arctic qualifies as a desert habitat.
Yup....they do
Humans, according to the links below.
Yes, many live in the Gobi
desert scrub is one of them and that is all i know because i live their
There are several.cariboupolar beararctic foxwolf/wolverinemusk oxwhalesbirdsharp sealswalruserminelemmingarctic harearctic ground squirrel
An ecosystem is a place where plants and animals ( maybe humans ) live and animals and plants live in the desert so … 
it would be the arctic fox but the live in very different habbitats
Humans predominantly live in the Arctic, as it is home to several communities, research stations, and indigenous populations. The Antarctic, on the other hand, is primarily reserved for scientific research and does not have any permanent human inhabitants, except for researchers who live temporarily in research stations.