question about big cat and thier “standard attack” animal companion


IM playing pathfinder with my friends and IM playing a hunter (ranged build) and I have an animal companion a Big Cat we are currently level 5, and we started at level 4 and IM going to ask something that is troublesome.

How does a "standard attack works?"

Let’s say I move 10 yards and then i want to attack an enemy:

Can I attack with bite and claws?

Only bite?

Only claws?

Do I need to do full round attack to get all 3 attacks?

is there a way to get all attacks in a round?

Any good insight about this and any future tips for big cats?

thanks alot guys!