Jurastic park part 1 questions..?

Well believe it or not but my summer school teacher for biology is
making us watch jurastic park as a rest and gave us the paper to take
home. I thought it was cool because I have all three movies. I get
home to find out that the cd was broken months ago -_- so I'm screwed.
I already answerd more than half the questions but there are some I
don't know. So if you can I'd appreciate you help soooo much! Thank
you :)

7. What kind of ecolOgical relationship occurred when the
tyrannasaurus Rex and the GAlamimus? (this was the fighting scene)
9what was the power source of everything on the park? WhT were the
advantages and disadvantages?
11. On the basis of the movie, do you think it would soon be possible
to produce living forms of extinct animals by reconstructing their
DNA?(I think ive already got the answer to this one.
12. Are there any species that would be good to bring back from
extinction? What Dino would have to most negative impact on the
Envoronment?