Science Quiz

I was listening a recent podcast of BBC Radio 4's "Now" show (hilarious recap of the week's event) and they were commenting on the story that UK students aren't that good at science. They asked three questions and gave funny answers, so if you didn't know the answers (as I didn't to 2 of them), you have to look them up.

1) What are the five characteristics shared by all animals?
2) What is a benzene ring?
3) What is Brownian motion?

Answers :
1) http://www.coolschool.ca/lor/BI11/unit10/U10L01.htm
2) http://www.thefreedictionary.com/benzene+ring
3) http://en.wikipedia.org/wiki/Brownian_motion