mostly meat such as: deer, cats, any wild animal that can be found and is small enough to eat.
Wolves and humans.
Polar bears do not typically eat wolves. Their primary diet consists of seals, particularly ringed and bearded seals, which are more abundant in their Arctic habitat. While polar bears are opportunistic feeders and might scavenge on other animals if food is scarce, encounters with wolves are rare, and wolves are not a preferred or common food source for them.
yes
The primary souce is the SUN
the primary food source for the artic fox is the Harp Seal
The primary source of food for a huntsman spider is insects and other small invertebrates.
Corn or maize was a primary food source.
Wolves don't really have any predators, since they are at the top of the food chain, but bears will sometimes attack them if a stray wolf or a pack of wolves get to close to a mother bear and her cub/s. However, Wolves are most at danger from us humans. We chop down the forests that wolves use as their primary food and shelter source, and often if a ranger comes across wolves on his land, he will shoot them, even if the wolves have not interfered with their flocks of sheep or herds of cattle.
PLANKTON
Plankton.
This one
The Sun