No.
Though most wolves live and hunt in packs, they usually give up a carcass when a grizzly bear arrives on the scene. The bear has a massive advantage over the wolves, due to their strength and weight, and could easily kill one if given the opportunity.
Black bears, however, are much smaller and are probably an easier opponent to a wolf pack and, in my opinion, stand no chance, unless in a group.
Bite it three times while it's eating.
Neither a wolf nor a bear would want to get into a fight with each other if they could avoid it. Although the bear would be very likely to win such a fight, it would still be injured in the process, perhaps badly.
Be calm and howl like a wolf to scare it off.
by its big huge teeth
When you scare a bear off.
This is not even remotely true. Someone is trying to scare you off biting your fingernails.
If you equip it with laser beams or shoulder-mounted rocket launchers, then yes.
in single player you bite the bear three times for it to run away and in multiplayer it runs when you go up to it
Be yourself. If that does scare them off then it's their loss! It sounds like such a cliche but if you intend to have a relationship with someone then it's best to be yourself from the start! Just relax and let the true you come out!
to scare off a strange otter
dolphins scare off sharks by fighting them
If you have survival of the pack downloaded you can bite the bear 3 times to make it run like a chicken away!