Caterpillars
bears eat the Arctic fox and arctic fox eats mouse
Arctic fox
polar bears.
Nothing eats moss
Yes, they do. Some examples are Arctic Cod, which eats Zooplankton, and a walrus which eats seaweed.
a arctic fox
the arctic hare and the lemming
foxes
A dog
Acute sedge is a species of sedge, Latin name Carex acuta, also known as slender tufted-sedge.
nothing