Pick from: 1. barrel-shaped. 2. a prism. 3. Something to move. 4. fertile. 5. epidermal. 6. solid, liquid, gas. 7. revolving. 8. reflecting light.

Fact 1: Adult tunicates are barrel-shaped. Fact 2: Tulip bulbs are tunicated. Given the two facts above, adult tulip bulbs are what shape?
Answer:
1.