L.F.
As long as your daughter isnt the one acting out you should be alright. Biting is a traditional thing with children - my daughter was bitten a few times at the same daycare and in the same room. Findout what the daycares policy is on those issues. Ours has a policy of third time - the child is out. First time - time out and tell parents. 2nd time - they get sent home for three days... Third time - Find another daycare for the child. Scratch on the face - again - our daycare has thier policy in place and its one i am willing to accept and live with as long as nothing SERIOUS happens to my daughter.
Good luck but I think everything will be alright.