1. How may pairs of abdominal organs that produce electricity in an electric eel are there?
1 of 20
Other questions in this quiz
2. Sharks have a swim bladder
3. Is bone better at transmitting muscular force than cartilage?
4. What are the benefits of having a lighter cartilaginous skeleton?
- All of the above
- Swim faster
- Evade predators
- Catch prey
5. The basking shark swims with its mouth open, is this free of problems?