Fact 1: Adult tunicates are barrel-shaped.

Fact 2: Tunicates, or sea squirts, are marine organisms covered with a gelatinous tunic.

Given the two facts above, answer the question "what adults are barrel-shaped?" with the following options: 
- sea squirts
 - fertile
 - homogenous
 - reproduce
 - Length
 - insects
 - barnacles
 - survive


 

 sea squirts        