I like your shark test. Let me see how many of these I can get right...
1) I think the answer may be D - 1500. I know that there's a LOT of different kinds of sharks!
2) D. ALL OF THE ABOVE!!!
3) I think the answer is D again. Lemon sharks by nature are pretty docile (gentle). But they like to lie around the bottom of the sea floor, and people can accidently step on them or kick them when they are swimming or playing in shallow water. That's when the lemon sharks react by biting.
4) Either A or B. Sharks never stop swimming. If they do, they'll sink and even drown! Maybe they can doze for a little bit while they're swimming, so maybe B.
5) In the natural world, dolphins are the greatest threat to sharks, and they will actually attack them. Dolphins don't bite sharks, they butt them with their heads really hard. (I suppose the peace-niks will say that people are the greatest threat to sharks, though...)
The school that I'm at doesn't have a name. But we are in the USAP hanger at the Christchurch airport. It's right across the street from the International Antarctic Centre. My hotel is the Aiport Gateway Hotel. It's right down Memorial Avenue from the airport about a mile or two, then around the corner. Maybe you can find it on Google Earth, too!! My room is in the building at the very end of the parking lot, the second from the right, on the second floor. :-)