1. Why were Ian McDonald and Charles Fisher puzzled
when they saw movement on the methane ice?
2. The oil industry is using worms to locate oil deposits.
Why?
3. What biological group of worms do the ice worms belong
to?
How do you know?
4. No one had previously seen the methane ice worms because
they
a. were well camouflaged. b. lived in the ocean muds. c. did not eat regular food. d. lived too deep in the ocean.
5. It is thought that the ice worms may represent a life
form that could survive on other planets because
a. they look like aliens and ate methane. b. they appear to live on methane, a common planetary
gas. c. they can survive in subfreezing temperatures. d. they are small enough to hide in rock crevices.
6. Ian McDonald is a
a. marine biologist b. oceanographer c. geochemist d. invertebrate zoologist
