You are presented with the question "what lacks a backbone?" and the following answer choices: 
- fossil fuels
 - Chlorophyll
 - humans
 - Leptospirosis
 - fungi
 - spine
 - jellyfish
 - animals

Now knowing that invertebrates are animals that lack a vertebral column, or backbone and jellyfish and insects are invertebrates, choose the best answer.


 

       jellyfish  