You are presented with the question "What has a circulatory system with a two-chambered heart?" and the following answer choices: 
- sharks
 - insects
 - salmon
 - animals
 - barnacles
 - mammals
 - tortoises
 - alpacas

Now knowing that fish have a circulatory system with a two-chambered heart and fish include bass and salmon, choose the best answer.


 

   salmon      