I know this answer has been asked before on here but I am wanting a different more detailed explanation please. Nothing copied and pasted either.

The topic is: Proof of Negligence

The story to answer the question is: During a bar fight, the Defendant smashes the Victim in the face. Between the testimony of the bartender, evidence indicating that the Victim had to be hit in the face by someone else, and the bits of glass found on the Victim's clothing, the Defendant is convicted of assault and battery. The victim now civilly sues for damages.

Questions: Explain how the following may apply and provide supporting details

1.) Fact versus opinion

2.) Standard of proof

3.) Unavoidable acts

4.) Breach of care

5.) Degree of negligence

6.) The doctrine ofres ipsa loquitur

7.) Joint tortfeasors' liability